To carve cooked ham (7)
I believe the answer is:
overact
'ham' is the definition.
(ham can mean to overact)
'to carve cooked' is the wordplay.
'cooked' is an anagram indicator (letters cooked into a new form).
'to'+'carve'='tocarve'
'tocarve' is an anagram of 'OVERACT'.
(Other definitions for overact that I've seen before include "Perform hammily" , "behave exaggeratedly" , "Don't expect Oscar" , "Play part exaggeratedly" , "Do what ham thespian does" .)