Sound of scissors (4)
I believe the answer is:
snip
'sound of scissors' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for snip that I've seen before include "Cut; bargain (colloq.)" , "Bargain - crop" , "Cut with scissors - bargain" , "vasectomy?" , "Cut with scissors in small strokes" .)