Referring Clues

• Back of a boat
• Rudder's locale
• Grave
• Unaccommodating
• Uncompromising
• Stringent
• Unsmiling
• Rear
• Back
• Finger-wagging
• Back on the briny
• Rudder's place
• Rudder's spot
• Unbending
• Demanding
• Rowboat's rear
• Boat's back
• Shock jock Howard
• Like some warnings
• Violinist Isaac
• Howard of morning radio
• Bark back
• Back on the high seas
• Draconian
• Opposite of soft
• Not lenient
• Finger-wagging, say
• Schindler's business partner in "Schindler's List"
• Like disciplinarians
• Place for an outboard motor
• Brooking no dissent
• Forbidding
• Rear, in the Navy
• Back at sea?
• Far from soft
• Hard-nosed
• Firm
• Rear of a galley
• Imus rival
• "Private Parts" author Howard
• Back of the boat
• Relentless
• Back on the sea
• Sailor's rear
• Rudder locale
• Self-proclaimed "King of All Media"
• Back in the navy
• Stem's opposite
• Severe in manner
• Back end
• Laying down the law
• Austere
• See 15-Across
• Far from lenient
• FCC flouter Howard
• Howard of Sirius radio
• Ferry tail
• Ruling with an iron fist
• Back on the ocean
• Back at sea
• Stem to ___
• Noted shock jock
• Harsh
• "Private Parts" author
• Flinty
• Sirius star
• NYU's business school
• NBA commissioner David
• Back on the ocean?
• Rigid
• Tough
• Boat back
• Severe
• Tiller's place
• After part
• Back of a ship
• Very strict
• Brooking no nonsense
• Back in the Navy?
• Back of a skiff
• Back, at sea
• Hardly lenient
• Unyielding
• Outboard motor's locale
• Hardly permissive
• Iron-fisted
• Boat section
• Bow's opposite
• Place for a wake?
• Outboard motor location
• Like old schoolmasters, stereotypically
• Hardhearted
• Opposite of stem
• Hind end
• Ship's rear
• 26-Down opposite
• Howard of satellite radio
• Violin virtuoso Isaac
• Hard
• Rear of a ship
• From stem to ___
• Harsh, as a reprimand
• Isaac with a bow
• Whaler's rear end
• Back, on a skipjack
• Outboard motor locale
• Virtuoso Isaac
• Poop's place
• Radio's bad boy
• Back of a skipjack
• Shock jock
• Tiller's locale
• Grim
• Back on the high seas?
• Rents anagram
• Not easily amused
• Unlikely to crack a smile
• Prow opposite
• Prow opposite
• Exacting
• Somber
• Barge back
• 'King of All Media'
• Radio's Howard
• Unrelenting
• Boat back
• Like a tough-love parent
• Not at all lenient
• Authoritarian
• Quarterdeck's place
• Uncompromising virtuoso
• Bow's counterpart
• Strict
• Fiddling Isaac
• Daniel of "City Slickers"
• Like taskmasters, often
• Serious
• Rear admiral's rear
• Back in the water
• Exacting, discipline-wise
• Not at all lax
• Gondolier's position
• Rudder's location
• Scene of a wake
• Rudder location
• Heavy handed
• Inflexible
• 'America's Got Talent' judge
• Isaac with a violin
• Satellite-radio star
• Wes of "Rhoda"
• Resistant to compromise
• Ironfisted
• Howard ___ of radio
• Back in the water?
• Like a parental lecture
• "City Slickers" co-star
• Violinist Isaac ___
• All business
• Cruiser's rear
• Hard to move
• Harsh in apperance
• Area to the rear
• Like a disciplinarian's talk
• Rear, to an admiral
• Without empathy
• Far from lax
• U.S. violinist
• Howard or Isaac
• SiriusXM star
• Grim-looking
• Barge's back
• Titanic rear end
• Taking no guff
• Unlikely to smile
• Part of a ship
• See 60-Across
• Where a ship leaves its wake
• Serious and firm
• Sirius XM radio star
• Harsh or rigid
• Adamantine
• Ocean liner's rear
• Aft area
• Howard on satellite radio
• Howard or Daniel
• Ship section
• Ship's section
• Wacky Howard
• Small bird at rear of ship
• Unrelenting back
• The rear of a ship or boat
• Howard on the airwaves
• Daniel of "Home Alone"
• Rocker interviewer Howard
• Radio interviewer Howard
• Forbidding in aspect
• Grim prospect for yachtsman trying to catch rival
• Back end of a ship
• Frowning in consternation
• During Easter, normally, it's tough
• Not smiling back
• Back rents suitably dealt with
• Pasternak's back! (In hardback?)
• Hard as a westerner's heart
• Westerner's hard heart
• It's severe at the rear
• Strict regulation of rents
• It's hard to get back
• Rear to be tough?
• It's tough at the rear
• Grim end to a ship
• Not a bow - not even a smile, apparently
• Severe -- back of boat
• Strictly speaking, the tail of a dog
• Harsh, severe
• Point on bird's back
• Hardback?
• Rigorous - back of boat
• Quarterdeck's location
• Small bird's tail
• Point to bird's back
• Unyielding - rump
• Point to bird's rump
• Rear small bird
• Back on a boat
• Back on board?
• Like a demanding schoolmaster
• Ship back?
• No-nonsense
• Rear of ship
• Austere Midwesterner?
• Point to bird at back end of ship
• Severe and unremitting: area of a ship
• Authoritarian writer of novels, abridged
• Irish novelist reportedly having a forbidding appearance
• Serious novelist, not English
• Irish novelist, reportedly, is demanding
• Rigid back
• Firm rear
• Rear end
• Self-described "King of All Media"
• Outboard motor's spot
• Skipjack's back
• Southern bird at rear of ship
• Lenient? No way
• Forbidding rents to be revised
• National Radio Hall of Famer Howard
• Harsh, as a teacher
• Howard of XM radio
• Unrelentingly serious
• Harsh, as an instructor
• Last part of the Titanic above water
• Like a disciplinarian
• Back of a barge
• Endmost part of an aircraft
• Hard as the heart of a westerner
• Severe if back on board
• Forbidding the revision of rents
• 4-Across' opposite
• Rudder's region
• Humorless
• Unsympathetic
• Rear of a boat
• Ship's rear end
• Rigorous
• Highly exacting
• A tough back
• Rudder area
• Rear part of a ship
• Back rents collected
• Doling out tough love
• NYU school of business
• Serious and strict
• Back rents, maybe
• It's grim, getting set about by sailors!
• Prow : front :: ___ : back
• Rearward part of a ship
• Rigidly rule-enforcing
• A stiff back?
• Rear with rudders
• Back of the canoe
• Strict and serious
• See 49-Across
• Overly firm when giving instructions
• Violinist Isaac who performed the solos in the movie "Fiddler on the Roof"
• Serious in tone
• Like the tone of a talking-to
• Severe in tone
• Like a serious talking-to
• Rhadamanthine
• Pasternak's back! (In hardback?)
• Pasternak's hard heart!
• Serious in demeanor
• Rear to be tough?
• Back on the ocean?
• Unlikely to approve of horseplay
• Back in the navy?
• Showing tough love, say
• Isaac or Howard
• Like an authoritarian
• Taxing, as a test
• Serious in manner