Holy Communion from curate with his constituents (9)
I believe the answer is:
eucharist
'holy communion' is the definition.
(thesaurus)
'curate with his constituents' is the wordplay.
'with' says to put letters next to each other.
'constituents' indicates an anagram.
'curate'+'his'='curatehis'
'curatehis' with letters rearranged gives 'EUCHARIST'.
'from' acts as a link.
(Other definitions for eucharist that I've seen before include "Holy Communion" , "church service" , "Bread and wine" , "Consecrated bread" , "host" .)