Answer: wiseacre

AnswerCrossword Clue
WISEACRE

Know-it-all

WISEACRE

Bugs Bunny, for one

WISEACRE

Joker

WISEACRE
Smart aleck
WISEACRE
Smarty-pants
WISEACREKnow-it-all.
WISEACRESmart aleck's rural address?
WISEACRESage field?
WISEACRESmarty
WISEACRESmart alec
WISEACREOne who's smart?
WISEACRESagacious fellow?