Mean to turn handle (4)
I believe the answer is:
name
'handle' is the definition.
(handle can mean a name or nickname)
'mean to turn' is the wordplay.
'to turn' is an anagram indicator (letters turn into something else).
'mean' anagrammed gives 'NAME'.
(Other definitions for name that I've seen before include "Call; reputation" , "Famous person; reputation" , "Mean sort of appellation" , "celebrity" , "Handel, for example" .)