Possible Clues:

• Minister of a synagogue
• Wiesenthal Center's Hier, for one
• Harry Kemelman sleuth David Small, e.g.
• ''My master,'' in Hebrew
• Congregation head
• Temple scholar
• Holy leader
• All save the tail of the bunny is 25 down (5)
• Hebrew master
• Talk at length but inconclusively as legal scholar