Answer:

wag

Answer	Crossword Clue
WAG	Joker
WAG	Jokester
WAG	Shake, as a finger

WAG	Witty fellow
WAG	Quipster
WAG	Funny sort
WAG	Humorist
WAG	Caudal motion
WAG	Move back and forth
WAG	Droll humorist
WAG	Comedian

WAG	Wit
WAG	Tail greeting
WAG	Greeting of a kind
WAG	Tail movement
WAG	Boxer's excited gesture
WAG	Card
WAG	Move one's tail
WAG	Tail flick

WAG	Witty type
WAG	Chattering tongues do it
WAG	Witty sort
WAG	Boxer's greeting
WAG	Shake in reproach, as a finger
WAG	Sign of puppy love?
WAG	Shake, as a tail
WAG	Move from side to side, as a tail

WAG	Shake a tail
WAG	"... the Dog" (De Niro film)
WAG	Chin or tail action
WAG	What gossiping tongues do
WAG	Tongue or tail action
WAG	Humorous fellow
WAG	Tail motion
WAG	Tongues do it

WAG	Droll one
WAG	Oscillate, as a tail
WAG	Go to and fro
WAG	Funny fellow
WAG	Go back and forth