Referring Clues

• Loony bird
• Cashew, e.g.
• It fits under a head
• Screwball
• Fanatic
• Not your ordinary fan
• Fiend
• Weirdo
• Crackpot
• Protein source
• Zealot
• Fruitcake
• Eccentric
• Kook
• Plumber's piece
• Crank
• Yo-yo
• Bolt attachment
• Loony tune
• Big fan
• Wrench's target
• Hound
• Buff
• Enthusiast
• Macadamia, e.g.
• Aficionado
• Granola morsel
• Loon
• Bit of trail mix
• Zany
• Wack job
• Macadamia, for one
• Kind of case or shell
• Squirrel's find
• Wacko
• Pecan, for example
• Enthusiast, in slang
• Rubber room candidate
• Bolt securer
• Total expenses, informally
• Acorn, for example
• Word with lock or lug
• Waldorf salad tidbit
• Trail mix morsel
• Pecan or cashew
• Lug, e.g.
• Fan
• Operating expenses
• With 4-Down, pecan, e.g.
• Filbert, e.g.
• Cashew, for one
• Devotee
• Pecan or hickory
• Oddball
• Fancier and then some
• Diehard fan
• Hexagonal holder
• Bar morsel
• Cashew or filbert
• Acorn, essentially
• Hard fruit
• Bolt holder
• Filbert, for instance
• Kernel
• Pecan or macadamia
• Bar-counter snack
• Filbert, for one
• Almond, pecan or cashew
• It may be tough to crack
• Venture-launching cost, slangily
• Acorn, e.g.
• Odd character
• Word with "hickory" or "health"
• Companion for a bolt
• It gets cracked on purpose
• Shell kernel
• Wrench target
• Brazil, e.g.
• Brazil, for one
• Violin part
• Word with hickory or health
• Squirrel treat
• It may be cracked
• It's tough to crack
• Cost of business, informally
• Squirrel food
• More than an aficionado
• Hickory ___
• Cuckoo bird
• Pecan, e.g.
• Dry fruit
• Bolt's adjunct
• Bit in trail mix
• Wild and crazy guy
• Edible kernel
• Item in a squirrel's stash
• Cashew or pecan
• Acorn. e.g.
• Cheap hardware store purchase
• Total goofball
• Almond or cashew
• Hazel, for one
• Pistachio or pecan
• Maniac
• Macadamia or cashew
• Kook or cuckoo
• Partner of 44 Across
• Wack-job
• Shop fastener
• Flake
• Acorn
• Pistachio
• Pecan or almond
• Bonbon center
• Bolt partner
• Squirrel snack
• Squirrel's prize
• Bolt connector
• Bolt's partner
• Fruitcake bit
• Fruit-cake ingredient
• Squirrel's treat
• Hardware item
• Enthusi-ast
• Granola bit
• Litchi, e.g.
• Bolt fastener
• Huge fan
• Giant fan
• Almond, e.g.
• Extreme fan
• Almond or pecan
• Cashew or almond
• Pistachio, for one
• Squirrel's snack
• Granola bar bit
• Zealous type
• Acorn or pecan
• Big devotee
• Zany one
• Real fan
• Super fan
• Cashew or pistachio
• Tough ___
• Bar bit
• Energy bar bit
• One gone cray-cray, as it were
• Buff ___
• Bar bowl item
• Unpredictable sort
• Loony
• Almond, for one
• Brazil ___
• Pecan
• Hard-shelled seed
• Avid fan
• Item that can be tough to crack
• Brainteaser
• Operating expenses, in slang
• Frantic fan
• Fanatic fan
• Lunatic, slangily
• Madcap
• Hollow fastener
• Fruit served with a cracker?
• Wackadoodle
• Devoted fan
• Tough thing to crack
• Brazil ___
• Source of a common allergy
• Filbert or cashew
• Baklava morsel
• Fruitcake ingredient
• See 78-Across
• Hard-shelled fruit
• Crunchy snack
• Butter preceder or follower
• Aficionado, informally
• Superfan
• Word with "case"
• Bar nosh
• Biscotti tidbit
• Rabid fan
• Pistachio or macadamia
• Bolt go-with
• Kind of kernel
• Trail mix bit
• Energy bar morsel
• Morsel in tavern mix
• Acorn, for one
• Bit of hardware
• ___ butter
• Bolt's mate
• Pecan, for one
• A cashew is one
• Almond, pecan or pistachio
• Bit of squirrel food
• A pistachio is one
• What a squirrel searches for
• A pistachio
• Common ingredient in granola
• Black Flag "Loose ___"
• Crazy frontman
• '94 Tesla album "Bust a ___"
• XTC "Fruit ___"
• Head (slang)
• Squirrel ___ Zippers
• Almond, for example
• Fruit
• Head that may be turned
• Bonce
• Union head
• Head screwed on?
• Brazil, for instance
• It has its bolthole!
• A screwy character?
• Minute piece of food?
• Only something short will go in its shell
• Pistachio, say
• Fanatical enthusiast
• Enthusiast (slang)
• Head teachers
• Hard dry fruit - enthusiast
• Food which might be bolted
• Pecan or pistachio
• Brazil or pecan
• Brazil is one
• Snickers tidbit
• Screw-loose type
• Ding-a-ling
• Crazy person
• Seed
• The head, eccentric type
• Mechanical fastener
• Bolt surrounder
• Pistachio or pecan, for example
• Pine or cashew
• Acorn or brazil
• Word that can follow "Brazil" or "hickory"
• ___ butter (bread spread)
• Morsel in a squirrel's stash
• Waldorf salad ingredient
• What butter may be made from
• Bar mix morsel
• Dry one-seeded fruit
• Food to crack
• Beer ___
• Something cracked up as a bit of a stunt!
• A good thing for seedy teachers?
• Commonly hexagonal hardware
• Snickers-bar crunchy
• Eccentric teachers' union
• Bar-bowl morsel
• Avid fan, slangily
• An eccentric with a bolt hole?
• One might be tough to crack
• Head of the teachers' union?
• Hard fruit of a plant
• It may have a bolt hole
• See 38-Across
• If you eat it, don't bolt it
• Pistachio, for example
• Fruit with an edible kernel
• Bolt’s partner
• Bean that may well feature in a vegetarian's diet
• Obsessive fan
• Planters bit
• It may be cracked or roasted
• Pecan tree seed
• Filbert or pecan
• Squirrel food tidbit
• Something to eat but not bolt
• Sports ___
• Snack item
• Threaded fastener
• Macadamia ___
• He's crazy for vegetarian food
• Praline morsel
• Hard ___ to crack
• Almond or macadamia
• Cashew, for example
• A macadamia is one
• Pistachio or cashew, e.g.
• Head screwed on?
• Hexagonal bit of hardware
• Macadamia or almond
• Bolt's counterpart
• Wing ___
• Gorp morsel
• Head teachers' union?
• Macadamia or pecan
• Almond or pistachio
• A fan who's tough to crack
• An eccentric union?
• Minute piece of food?
• Pistachio or almond
• Almond or acorn
• Acorn or cashew
• Crack it to eat the insides
• Common allergen
• Karuka or pecan
• Pecan or acorn
• Trail mix morsel that is technically a fruit
• Sacha inchi or acorn
• Pecan or filbert
• Walnut or pecan
• Tidbit in 6-Across
• Pistachio, e.g.