Upsetting bloody film about India's partition (7)
I believe the answer is:
divider
'partition' is the definition.
(synonyms)
'upsetting bloody film about india's' is the wordplay.
I cannot really see how this works, but
'film' could be 'vid' (short for video) and 'vid' is found within the answer.
'india' could be 'i' (phonetic alphabet: alpha, bravo, charlie etc.) and 'i' is located in the answer.
The remaining letters 'der' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for divider that I've seen before include "potential ruler?" , "Partition" , "Screen separating parts of room" .)