Synagogue leader (5)
I believe the answer is:
rabbi
'synagogue leader' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rabbi that I've seen before include "Religious leader of Jewish congregation" , "Legal expert" , "Spiritual leader of a Jewish congregation" , "Sacks, for example" , "A Jewish scholar or synagogue leader" .)