Whack, as a mosquito (4)
I believe the answer is:
swat
(Other definitions for swat that I've seen before include "Swift, sharp blow" , ".`Twas quite a blow" , "strike smartly" , "Crush (eg, a fly)" , "Hit with a sharp blow" .)
I believe the answer is:
swat
(Other definitions for swat that I've seen before include "Swift, sharp blow" , ".`Twas quite a blow" , "strike smartly" , "Crush (eg, a fly)" , "Hit with a sharp blow" .)