Film composer one morning seen amongst leaves (8)
I believe the answer is:
williams
'film composer' is the definition.
The definition suggests a singular noun which matches the answer.
'one morning seen amongst leaves' is the wordplay.
I cannot quite see how this works, but
'one' could be 'li' (I've seen this in other clues) and 'li' is located in the answer.
'morning' could be 'am' and 'am' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for williams that I've seen before include "Serena --, tennis player" , "... after which [STATE = TENNESSEE] writer" , "Dessert pear variety" , "Tennessee, Wm. Carlos ---, authors" , "Robin and Robbie ..." .)