Movie pig (4)
I believe the answer is:
babe
'movie pig' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for babe that I've seen before include "Pig film; innocent" , "Small child; -- Ruth, US?baseball player" , "good-looking young lady" , "child still very young" , "one up in arms" .)