They have a high position in the church (5)
I believe the answer is:
bells
'they' is the definition.
Both the answer and definition are plural nouns.
Perhaps there's an association between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for bells that I've seen before include "Musical instruments" , "Summoned by -- (Betjeman)" , "Ringing objects" , "Those ringing in the New Year" , "Scotch?" .)