Edited incisively (3)
I believe the answer is:
cut
'edited' is the definition.
Both the definition and answer are adjectives. Maybe there's a link between them I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for cut that I've seen before include "Gash" , "Prune" , "Slight" , "Remove; slice" , "Reduction; piece of meat" .)