Get ready to cut and stuff inside (7)
I believe the answer is:
prepare
'get ready to' is the definition.
(thesaurus)
'cut and stuff inside' is the wordplay.
'cut' becomes 'pare' (paring is a kind of cutting).
'and' says to put letters next to each other (I've seen this in other clues).
'stuff inside' becomes 'pre' (I can't explain this - if you can you should give a lot more credence to this answer).
'pare' put after 'pre' is 'PREPARE'.
Can you help me to learn more?
(Other definitions for prepare that I've seen before include "study" , "[GET READY] (3 of 3)" , "Make ready or suitable" , "Make (something) ready" , "Fit out" .)