Wheel-turning rodent (7)
I believe the answer is:
hamster
'wheel-turning rodent' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hamster that I've seen before include "Common pet rodent" , "Animal" , "The arms (anag)" , "Small pet rodent with pouched cheeks" , "Kind of rodent with cheekpouches, often a pet" .)