Actor’s spinning wheel (6)
I believe the answer is:
castor
'wheel' is the definition.
(castor is a kind of wheel)
'actor's spinning' is the wordplay.
'spinning' indicates an anagram.
'actors' with letters rearranged gives 'CASTOR'.
(Other definitions for castor that I've seen before include "excellent once at the Gabba" , "Trolley wheel" , "Pollux's twin" , "Brother to Pollux" , "Furniture wheel; sort of oil" .)