Cut's counterpart (5)
I believe the answer is:
paste
'cut's counterpart' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for paste that I've seen before include "Soft, malleable material - stick" , "Watery cement" , "Adhesive gum" , "not real rock" , "(In computing) insert text into a document" .)