Answer:

lunk

Answer	Crossword Clue
LUNK	Numskull
LUNK	Blockhead
LUNK	Muttonhead

LUNK	Idiot
LUNK	Dolt
LUNK	Dullard
LUNK	Lamebrain
LUNK	Galoot

Crossword

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