Polish off beef, maybe, without starter (3)
I believe the answer is:
eat
'polish off' is the definition.
(I've seen this in another clue)
'beef maybe without starter' is the wordplay.
'beef maybe' becomes 'meat' (beef is a type of meat).
'without starter' means to remove the first letter.
'meat' with its first letter taken off is 'EAT'.
(Other definitions for eat that I've seen before include "Scoff" , "Ingest" , "Be corrosive" , "put away" , "Bite, chew and swallow" .)