Answer: beaver

AnswerCrossword Clue
BEAVER

Jerry Mathers, once

BEAVER

Oregon State mascot

BEAVER

Jerry Mathers role in '50s-'60s TV

BEAVER
Dam critter
BEAVER
Lodge builder
BEAVERRodent that gives a dam?
BEAVERDam maker
BEAVERAnimal on the back of the Canadian nickel
BEAVEROregonian
BEAVERBusy type
BEAVERLeave It to ....
BEAVERTheodore Cleaver's nickname
BEAVERJerry Mathers role
BEAVERTheodore's nickname
BEAVER"Eager" animal
BEAVERIndustrious sort
BEAVERDam-building beast
BEAVERSymbol of Oregon
BEAVERSymbol of Oregon.
BEAVERMan with a beard.
BEAVERBroadtailed dam builder.
BEAVEROregon, the ... state.
BEAVEROregon's state nickname.
BEAVERAnimal engineer.
BEAVERFur animal.
BEAVERHigh silk hat.
BEAVERBusy rodent.
BEAVERJuvenile TV character.
BEAVERTV lad.
BEAVERFur.
BEAVERHe gives a dam
BEAVERMan's high silk hat
BEAVERTitle boy in an old sitcom
BEAVERFurry feller?
BEAVERSymbol of busyness
BEAVERFeller in a forest?
BEAVERDam builder
BEAVERTheodore, more familiarly
BEAVERImage on the back of a Canadian nickel