Actor is not cast to be producer of pictures (10)
I believe the answer is:
cartoonist
'be producer of pictures' is the definition.
'actor is not cast' is the wordplay.
'cast' indicates anagramming the letters.
'actor'+'is'+'not'='actorisnot'
'actorisnot' with letters rearranged gives 'CARTOONIST'.
'to' acts as a link.
(Other definitions for cartoonist that I've seen before include "Scarfe, say" , "Strip artist?" , "Heath Robinson, say" , "one draws" , "drawer" .)