Referring Clues

• Author of "The Island of the Day Before"
• Prefix with -cide
• Prefix with sphere or disaster
• "Green": Prefix
• Prefix with sphere
• "The Island of the Day Before" author
• Prefix with system
• Earth-friendly prefix
• Author Umberto
• Environmentalist's prefix
• "Foucault's Pendulum" author
• Nonpolluting
• Prefix with sphere or system
• Green's prefix
• Prefix with hazard
• System starter
• Logical intro?
• Prefix with terrorist
• GREEN
• "The Name of the Rose" writer
• Prefix with climate
• Prefix with friendly
• Popular 90's essayist
• Modern prefix with friendly
• Environmental prefix
• Prefix with system or sphere
• Author of "Il nome della rosa"
• Friendly introduction?
• "The Name of the Rose" author
• Prefix with terrorism
• "A Theory of Semiotics" author
• "Baudolino" novelist, 2002
• Prefix with catastrophe
• System start-up?
• Prefix with logical
• Prefix with management
• "The Island of the Day Before" writer
• Prefix with tourism
• Novelist Umberto
• Green: Prefix
• ___-friendly
• Prefix with conscious
• System starter?
•     "Baudolino" author
• Friendly opener?
•     Prefix with friendly
• "Baudolino" author
• Prefix with warrior
• "Baudolino" novelist
• Green prefix
• Modern prefix with tourism
• Tree-hugger's prefix
• Modern prefix with village
• Writer Umberto
• Umberto who wrote "The Name of the Rose"
• Prefix with tour
• Prefix with tourist
• Prefix with freak
• Trendy prefix
• Friendly opening?
• Umberto ___, author of "The Name of the Rose"
• "The Limits of Interpretation" author Umberto
• "The Name of the Rose" novelist Umberto
• "Foucault's Pendulum" author Umberto
• "The Name of the Rose" author Umberto
• ___-friendly (safe for the environment)
• "The Island of the Day Before" author Umberto
• Friendly beginner?
• "Travels in Hyperreality" author Umberto
• Prefix with freak or friendly
• ___-Challenge (Mark Burnett's annual race)
• "The Name of the Rose" writer Umberto
• Friendly leader?
• Greenpeace's favorite prefix
• "Foucault's Pendulum" novelist
• "Il nome della rosa" author
• "Green" prefix
• Green prefix?
• Tourism prefix
• "Baudolino" author Umberto
• Friendly prefix?
• Author of "Misreadings" and "Serendipities"
• Earth First prefix
• Italian author Umberto
• System startup?
• Author of "The Name of the Rose"
• Antipollution prefix
• Italian writer Umberto
• Earth Day prefix
• Environmental-related prefix
• Friendly beginning?
• Author of "Foucault's Pendulum"
• Friendly beginning
• Prefix for sphere
• Good prefix for Earth Day
• Logical beginning?
• Friendly start?
• Environmentally friendly prefix
• Tour beginning?
• Prefix with sphere and politics
• "How to Travel With a Salmon" essayist
• Green opening
• ___-conscious (green)
• Author of "The Mysterious Flame of Queen Loana"
• ___-friendly (green)
• Prefix with feminist and freak
• ___-warrior (environmental activist)
• Prefix with consumer or catastrophe
• Tour starter
• Prefix with sphere and tourism
• Prefix with friendly or warrior
• Friendly prefix
• Prefix with toxicology
• "Turning Back the Clock" author Umberto
• "The Mysterious Flame of Queen Loana" author
• Modern prefix with balance
• Nature prefix
• Piedmont-born author
• Prefix with region
• "Foucault's Pendulum" writer
• Prefix for the EPA
• "Baudolino" author
• "Foucault's Pendulum" novelist
• Environmental word form
• "The Name of the Rose" author
• Prefix for system
• Earth-friendly lead-in
• Italian novelist
• "Nature" prefix
• Prefix for friendly
• "Green" prefix
• "The Name of the Rose" novelist
• Italian author
• "Baudolino" novelist
• Novelist from Piedmont
• Earth-friendly opener
• Best-selling author Umberto
• Prefix with "friendly"
• "The Name of the Rose" writer Umberto
• "The Island of the Day Before" author
• He wrote "The Name of the Rose"
• "Foucault's Pendulum" author Umberto
• "Foucault's Pendulum" author
• Writer Umberto or system header
• "The Name of the Rose" penner
• Logical start?
• Sphere or system starter
• Prefix for type
• Tourist prefix
• Prefix with "sphere" or "friendly"
• "How to Travel with a Salmon" essayist Umberto
• Natural prefix
• Start to freak?
• Friendly intro?
• Kind of system
• Nature lover's prefix
• ___-friendly (environmentally safe)
• Green opening?
• Italian medievalist
• Start to babble?
• Start for system
• Car starter?
• He wrote "The Name of the Rose"
• Prefix with "friendly"
• --- -friendly
• Kind of friendly?
• "Nature" prefix
• "The Name of the Rose" novelist
• Prefix associated with being green
• Green, in combinations
• Prefix with friendly or conscious
• Green start
• Pro-environment prefix
• Prefix with sensitive
• Prefix for responsibly sourced products
• System intro
• Prefix with tourism or terrorism
• Contemporary italian author
• Prefix with friendly or system
• Start to bag?
• Conscious beginning?
• Word form for "environment"
• Sierra Club's preferred prefix
• Prefix with car
• "The Prague Cemetery" author
• Friendly opening
• Environmentally friendly
• 'The Name of the Rose' author
• See 36-Across
• 'Baudo-lino' author
• 'Baudolino' author
• Green, in a sense
• Green, in a way
• Green (Pref.)
• Environment-friendly
• 'Foucault's Pendulum' author
• Prefix with car or law
• ___ -friendly
• ___ -friendly (green)
• Prefix with car or tour
• Start for friendly
• 'Green' prefix
• Prefix with 13-Across
• 'The Name of the Rose' novelist Umberto
• Sustainable prefix
• Start for type or tourism
• Prefix with resort
• Prefix with tour or type
• Prefix for system or sphere
• Conservation prefix
• Prefix with "warrior"
• ___ -conscious
• Prefix for tourism
• It means "green"
• Prefix with consumer
• Prefix meaning "green"
• Terrorist or sphere preceder
• Prefix with "system"
• "The Prague Cemetery" novelist
• "___-Challenge: The Expedition Race" (former USA show)
• Start of a Sierra Club tour?
• Beginning of many green words
• ___ -warrior
• Green start?
• ___-friendly ("green")
• Prefix with car or warrior
• System or friendly preceder
• "Friendly" attachment
• Prefix with law or tourist
• Start to tour?
• Author of "The Prague Cemetery"
• Author of "Misreadings"
• It can mean "green"
• System prefix
• 'The Name of the Rose' writer
• "Foucault's Pendulum" writer Umberto
• Intro to system
• Prefix with efficiency
• System or friendly lead-in
• Green piece?
• "The Island of the Day Before" novelist
• Modern prefix with warrior
• Sustainability prefix
• "The Prague Cemetery" author, 2010
• Writher umberto
• Modern prefix with design
• Prefix with footprint
• Tourism preceder
• Starter for system
• Prefix with car or chic
• Friendly lead-in?
• Green affix
• Lead-in to friendly
• Prefix with design
• Prefix with terrorism or tourism
• Green beginning?
• ___-Drive, popular light-powered watch
• Prefix meaning 118-Across
• Prefix with "sphere"
• Prefix with aware or catastrophe
• Lead-in with car or tourism
• Prefix with chic
• Starter for travel or tourism
• It means "earth-friendly"
• Friendly front?
• Prefix for systems and friendly
• Prefix with village
• Conservationist's prefix
• Prefix with fiction
• Prefix with footprint or friendly
• Prefix with law or chic
• Prefix with "friendly" or "tourism"
• Environmentally concerned
• Prefix with conscious or freak
• ___-conscious
• "Apocalypse Postponed" essayist
• Italian writer Umberto ___
• Tourism opening
• Prefix for freak
• Prefix for "freak" or "tourist"
• Prefix for terrorism
• Prefix before friendly
• Green living prefix
• Prefix for terrorism or tourism
• Non-polluter's prefix
• Author Umberto who died in 2016
• Prefix before friendly or terrorism
• Tourism beginning?
• Late genius that may prefix other solutions
• Author announced what precedes foxtrot
• Novelist who died in Milan in February
• "Il nome della rosa" writer
• Prefix with criticism
• Friendly opening?
• Borges contemporary
• 1989 Premio Bancarella winner
• Italian author of "The Prague Cemetery"
• Italian novelist in the city centre of Bologna
• Novelist from district of London close to Pimlico
• Pro-sustainability, in lingo
• Umberto ___ ("The Name of the Rose" author)
• ___-friendly (good for the environment)
• Earth-conscious prefix
• Prefix for "logical" or "tourism"
• ___-warrior (person who fights for the earth)
• Prefix with law or label
• Prefix for the footprint-conscious
• Start to terrorism or tourism
• ___-conscious (concerned for the Earth)
• Prefix for recyclers?
• "Numero Zero" author
• Earth-friendly, to begin with
• "Foucault's Pendulum" author, 1988
• Lead-in to tourism or terrorism
• Prefix for conscious or culture
• Prefix with warrior or tourist
• Bot head?
• Ghostwriter of "The Prague Cemetery"?
• Logical beginning?
• Environment-related prefix
• A natural beginning?
• Writer Umberto ___
• ___-bag ("green" tote)
• Lead-in to -cide
• Prefix with tourism or friendly
• Prefix with tourism or warrior
• Start for tourism or system
• Prefix for tourism or centric
• Prefix with car or conscious
• Prefix with freak or tourist
• Tour opening?
• Novelist who taught at Bologna
• Prefix with conscious or catastrophe
• System starter?
• Green starter
• Prefix with tourism or politics
• "Friendly" starter
• Prefix hidden in "wildlife conservation"
• Latter-day starter for activist
• Prefix with sphere or conscious
• Prefix with friendly or freak
• System start-up?
• Prefix for "conscious"
• Prefix with freak or warrior
• Nature-friendly prefix
• "Good for the earth" prefix
• Friendly predecessor
• Green top-level domain since 2017
• Latter-day starter for agriculture
• Lead-in to "lodge" or "logy"
• "Green" Web domain
• Sierra Club starter
• Logical opening?
• Prefix with "hotel" or "tourism"
• Tourist opening?
• Logical start?
• Prefix often associated with green
• Energy-saving mode in some cars
• Social science dept.
• Prefix for "tourism" or "friendly"
• Umberto who wrote "Foucault's Pendulum"
• ___ Mode (fuel efficiency button)
• Prefix for "activist" or "warrior"
• Brand of hairstyling gel
• Prefix for "warrior" or "friendly"
• Environmental opening
• Tourism lead-in
• Prefix for "friendly" or "warrior"
• Warrior prefix
• ___ mode (fuel-saving car feature)
• Environment-friendly prefix
• Sustainability indicator
• Kind to Mother Nature
• Prefix with label
• Friendly introduction?
• Prefix with consciousness
• Energy-saving mode in some hybrid cars
• ___ Styler gel
• Prefix for "friendly" or "conscious"
• Fuel-saving mode in some cars
• Lead-in to freak or friendly
• Prefix that's 36-Down minus a letter
• Prefix for "friendly" or "fascist"
• ___ mode (fuel-saving feature in newer cars)
• Prefix with hotel
• Environmentally friendly opening
• Environmentalist prefix
• Prefix for "friendly" or "system"
• Prefix for the green-minded
• Intro to -logical
• Lead-in to toxicology
• Climate-conscious prefix
• ___ mode: energy-saving car setting
• Logical lead-in
• Fuel efficiency mode
• Prefix for "resort" or "tourism"
• Friendly leader?
• Lead-in to sphere or system
• Fuel-efficient car mode
• ___-warrior (environmentalist)
• Prefix with tourist or hotel
• Climate activism prefix
• Prefix suggesting conservation
• ___ mode, setting in many modern cars
• More fuel-efficient driving mode
• Green hotel opening?
• Prefix with hotel or tourist
• Conscious beginning?
• ___-warrior (certain activist)
• Prefix for "friendly" and "feminism"
• Modern prefix with anxiety
• Logical opening
• ___ mode (fuel efficiency option in some cars)
• Prefix with car or hotel
• Italian scholar Umberto
• Good for the planet, for short
• ___-conscious: green-minded
• ___-chic (sustainable fashion)
• Sustainable start?
• ___-anxiety (fear of harm to the environment caused by human activity)
• ___ mode: hybrid setting
• Lead-in to "lab" in the name of an S&P 500 company