Meat free? See inside (8)
I believe the answer is:
escalope
'meat' is the definition.
(escalope is a kind of meat)
'free? see inside' is the wordplay.
'free?' becomes 'escape' (to escape is to free oneself from a place).
'see' becomes 'lo' (archaic word meaning 'look!').
'inside' is an insertion indicator.
'escape' placed around 'lo' is 'ESCALOPE'.
(Other definitions for escalope that I've seen before include "Cut of meat" , "Thin slice of boneless veal" , "what might feature in the catering" , "Thin piece of meat" , "Thin slice of boneless meat" .)