Official who checks films for the suppression of objectionable parts (6)
I believe the answer is:
censor
(Other definitions for censor that I've seen before include "Check contents of letter, play etc with a view to deleting passages" , "Suppress anything considered obscene or politically unacceptable" , "Wield a blue pencil" , "Ban public distribution" , "Official with power to prohibit distribution of material" .)