Answer:

goofs

Answer	Crossword Clue
GOOFS	Gets it wrong
GOOFS	Messes up
GOOFS	Screwups

GOOFS	Makes mistakes
GOOFS	Mistakes
GOOFS	Blunders
GOOFS	Makes a boo-boo
GOOFS	Makes a minor mistake
GOOFS	Slip-ups
GOOFS	Wastes time, with "off"
GOOFS	Bungles, with "up"

GOOFS	Dumbbells.
GOOFS	Very silly ones: Slang.
GOOFS	Fails: Slang.
GOOFS	Puts one's foot in one's mouth.
GOOFS	Screws up
GOOFS	Boo-boos
GOOFS	Slips
GOOFS	Mishaps

GOOFS	Makes silly mistakes
GOOFS	Slipups
GOOFS	Wastes time (with "off")
GOOFS	Loafs, with "off"
GOOFS	Errata
GOOFS	Flubs
GOOFS	Clowns

Crossword

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