Mass association of king and clergy member shortly in church area? (7)
I believe the answer is:
Here is my best explanation:
'mass association' is the definition.
'service' can be an answer for 'mass' (I've seen this before). I am not sure about the 'association' bit.
'king and clergy member shortly in church area?' is the wordplay.
'king' becomes 'r' (r is abbreviation for rex).
'and' is a charade indicator (letters next to each other).
'clergy member shortly' becomes 'vic' (abbreviation for vicar).
'in' is an insertion indicator.
'church area?' becomes 'see' (a see is a bishop's area of jurisdiction ).
'rvic' going into 'see' is 'SERVICE'.
'of' is the link.
(Other definitions for service that I've seen before include "following 28 [SILVER]", "duty", "start of action in court", "See 4", "Work done for others", "Periodic car maintenance", "mass, say", "Tennis opening shot", "Armed force - assistance" and "act".)