Dish Jewish leader initially put in hamper (6,3)
I believe the answer is:
rabbit pie
'dish' is the definition.
(rabbit pie is a dish)
'jewish leader initially put in hamper' is the wordplay.
'jewish leader' becomes 'rabbi' (Jewish religious teacher).
'initially' suggests taking the first letters.
'in' indicates putting letters inside.
'hamper' becomes 'tie' (both can mean to restrict).
The first letter of 'put' is 'p'.
'p' placed into 'tie' is 'tpie'.
'rabbi'+'tpie'='RABBIT PIE'
(Another definition for rabbit pie that I've seen is " Traditional country fare".)