Answer:

nincompoop

Answer	Crossword Clue
NINCOMPOOP	Knucklehead
NINCOMPOOP	Doofus
NINCOMPOOP	-

NINCOMPOOP	Ass
NINCOMPOOP	The other fellow's candidate.
NINCOMPOOP	Fool
NINCOMPOOP	Simpleton
NINCOMPOOP	Silly goose
NINCOMPOOP	Meatball

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.