Mr James returned 'mood' paint? (9)
I believe the answer is:
distemper
'paint?' is the definition.
(distempering is a kind of painting)
'mr james returned mood' is the wordplay.
'mr james' becomes 'Sid' (actor Sid James).
'returned' is a reversal indicator.
'mood' becomes 'temper' (temper is one's mood or state of mind).
'sid' in reverse letter order is 'dis'.
'dis'+'temper'='DISTEMPER'
(Other definitions for distemper that I've seen before include "Paint; animal disease" , "Paint; disease of dogs" , "Disease of animals, especially dogs" , "problem with dogs" , "that's infectious" .)