A cold starter of turkey or ham? (5)
I believe the answer is:
actor
'ham?' is the definition.
(ham is a kind of actor)
'a cold starter of turkey or' is the wordplay.
'a cold' becomes 'ac' (I've seen this in other clues).
'starter of' says to take the initial letters.
The initial letter of 'turkey' is 't'.
'ac'+'t'+'or'='ACTOR'
(Other definitions for actor that I've seen before include "One taking part" , "Person performing on stage or screen" , "one to take on roles" , "One with role" , "I pretend" .)