James, the old film star, is a craftsman (5)
I believe the answer is:
mason
'craftsman' is the definition.
(I know that mason is a type of craftsman)
'james the old film star is a' is the wordplay.
I cannot really see how this works, but
'old' could be 'o' (common abbreviation eg in OE for Old English) and 'o' is found within the answer.
'film' could be 'm' (1931 Fritz Lang film) and 'm' is present in the answer.
'a' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for mason that I've seen before include "A skilled worker in stone" , "Secret society member" , "Construction industry employee" , "Actor James" , "Craftsman - English film actor, d. 1984" .)