Cut and polish again (6)
I believe the answer is:
rebuff
This clue is a double definition.
'cut' is the first definition.
(thesaurus)
'polish again' is the second definition.
('buff' is an answer for 'polish' so perhaps 'rebuff' is OK for 'polish again')
'and' acts as a link.
(Other definitions for rebuff that I've seen before include "Reject in an ungrateful manner" , "'Slight, snub (6)'" , "Deliberate discourteous act" , "Check" , "Drive back" .)