Theme of best film announced (5)
I believe the answer is:
topic
'theme' is the definition.
(I know that theme can be written as topic)
'of best film announced' is the wordplay.
I cannot quite understand how this works, but
'of' could be 'o' and 'o' is found in the answer.
'film' could be 'pic' (short for picture) and 'pic' is found in the answer.
A single letter 't' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for topic that I've seen before include "A subject for conversation or debate" , "Theme of discourse" , "'Theme, subject (5)'" , "Subject matter, theme" , "Subject (of speech, etc)" .)