Country retreat in which there's a member of the clergy (5,4)
I believe the answer is:
rural dean
'country retreat in which there's a member of the clergy' is the definition.
The definition suggests a singular noun which matches the answer.
'country retreat in' is the wordplay.
'country' becomes 'rural' ('rural' can be similar in meaning to 'country').
'retreat in' becomes 'dean' (I can't justify this - if you can you should believe this answer much more).
'rural'+'dean'='RURAL DEAN'
Can you help me to learn more?
(Another definition for rural dean that I've seen is " Supervisory clergyman".)