Answer: smartaleck

AnswerCrossword Clue
SMARTALECKBumptious type
SMARTALECKKnow-it-all
SMARTALECKWiseguy
SMARTALECKWisenheimer
SMARTALECKSassy sort
SMARTALECKWise guy
SMARTALECKFlip one
SMARTALECKWise guy.
SMARTALECKWiseacre.
SMARTALECKMr. Know-It-All
SMARTALECKWise one
SMARTALECKWiseacre
SMARTALECKWiseass