Participating in miracle, rich minister of religion (6)
I believe the answer is:
cleric
'minister of religion' is the definition.
'participating in miracle rich' is the wordplay.
'participating in' says the answer is hidden in the clue.
'CLERIC' can be found hidden inside 'miracle rich'.
(Other definitions for cleric that I've seen before include "One in holy orders" , "Eg, priest" , "Priest, religious leader" , "One is in religious orders" , "One who takes orders" .)