Writer pockets ten pence piece in cinema (6)
I believe the answer is:
biopic
'writer pockets ten pence piece in cinema' is the definition.
I can't judge whether this definition defines the answer.
'writer pockets ten pence' is the wordplay.
'writer' becomes 'bic' (kind of pen).
'pockets' indicates putting letters inside.
'ten' becomes 'io' (IO resembles 10).
'pence' becomes 'p'.
'io'+'p'='iop'
'bic' enclosing 'iop' is 'BIOPIC'.
Can you help me to learn more?
(Other definitions for biopic that I've seen before include "... E.g. Gandhi" , "Film based on a life story" , "Gandhi, say" , "Film about a real life" , "Film dealing with person's life story" .)