Answer:

swatter

Answer	Crossword Clue
SWATTER	One hitting flies
SWATTER	Fly flattener
SWATTER	Anti-pest device

SWATTER	Cause of a fly's demise
SWATTER	Bug-zapper predecessor
SWATTER	Fly chaser
SWATTER	High fly catcher?
SWATTER	Fly killer.
SWATTER	Fly's finale.
SWATTER	Mighty batsman.
SWATTER	Fly ....

SWATTER	Batsman, perhaps.
SWATTER	Fly's nemesis
SWATTER	Insect killer
SWATTER	Insecticide, sort of
SWATTER	Musca domestica's nemesis
SWATTER	Fly follower
SWATTER	Debugging device?
SWATTER	Pest eradicator

SWATTER	No-fly-zone gear?
SWATTER	De-bugger?
SWATTER	Fly feller

Crossword

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