Quiet rites moved clergyman (6)
I believe the answer is:
priest
'clergyman' is the definition.
(I know that priest is a type of clergyman)
'quiet rites moved' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'moved' indicates an anagram.
'rites' is an anagram of 'riest'.
'p'+'riest'='PRIEST'
(Other definitions for priest that I've seen before include "Art looking into" , "Minister of religion" , "Spiritual leader" , "Man of god" , "Religious functionary" .)