Hit sharply (4)
'hit sharply' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for swat that I've seen before include "Crush (eg, a fly)" , "Hit a wasp or fly" , "Strike sharply (at fly?)" , "land crushing blow" , "Kill (fly)" .)
'hit sharply' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slap that I've seen before include "Blow (in face, on back, wrist)" , "Cuff" , "Make-up (slang)" , "Strike with the palm" , "Blow, maybe in the face" .)