Cleric rabbi's hoping to welcome (6)
I believe the answer is:
bishop
'cleric' is the definition.
(type of cleric)
'rabbi's hoping to welcome' is the wordplay.
'to welcome' indicates the answer is hidden within the clue (I've seen 'welcoming' mean this).
'BISHOP' can be found hidden inside 'rabbis hoping'.
(Other definitions for bishop that I've seen before include "Chess piece; mulled wine" , "Senior church minister" , "Chess piece and senior member of the clergy" , "See man at the top" , "Senior member of the Christian clergy" .)