Anger, say, about Kubrick's last film (4)
I believe the answer is:
skin
'film' is the definition.
(I've seen this in other clues)
'anger say about kubrick's last' is the wordplay.
'anger say' becomes 'sin' (anger is a kind of sin).
'about' is an insertion indicator.
'last' suggests the final letters.
The final letter of 'kubrick' is 'k'.
'sin' placed around 'k' is 'SKIN'.
(Other definitions for skin that I've seen before include "External surface" , "Outer layer of, eg, apple" , "Peel; drum head" , "Outer layer of a fruit or vegetable" , "Outer layer of tissue" .)