Answer:

DOUBLECHIN

Answer	Crossword Clue
DOUBLECHIN	Chewing gum could help prevent one
DOUBLECHIN	It's almost never found in cheesecake
DOUBLECHIN	Chubby's second feature.

DOUBLECHIN	Stunt man's woe?
DOUBLECHIN	Dieter's bane
DOUBLECHIN	Unflattering facial feature
DOUBLECHIN	Greenstreet feature
DOUBLECHIN	Facial feature that can be eliminated by cosmetic surgery