Rector, vicar (6)
I believe the answer is:
parson
I believe this clue is a double definition.
'rector' is the first definition.
(I know that rector can be written as parson)
'vicar' is the second definition.
(both are members of the clergy)
(Other definitions for parson that I've seen before include "Churchman" , "One with benefice" , "A rector or vicar" , "Rector; clergyman" , "Aprons (anag.)" .)