Priest’s circle needing reorganising (6)
I believe the answer is:
cleric
'priest's' is the definition.
(both can mean a clergyman)
'circle needing reorganising' is the wordplay.
'needing reorganising' is an anagram indicator (letters organised differently).
'circle' is an anagram of 'CLERIC'.
(Other definitions for cleric that I've seen before include "Religious official" , "One ordained" , "One who takes orders" , "One in holy orders" , "One is in religious orders" .)