Sheep-herding pig of film (4)
I believe the answer is:
babe
'sheep-herding pig of film' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for babe that I've seen before include "Tiny child" , "Ruth, for example" , "Girlfriend" , "Term of endearment" , "A literary infant or a modern good-looking girl" .)