Good rounds on a vicar (6)
I believe the answer is:
parson
'a vicar' is the definition.
(both are members of the clergy)
'good rounds on' is the wordplay.
'good rounds' becomes 'pars' (I can't justify this - if you can you should believe this answer much more).
'pars'+'on'='PARSON'
Can you help me to learn more?
(Other definitions for parson that I've seen before include "Churchman" , "Anglican clergyman" , "A rector or vicar" , "Minister of religion" , "Aprons (anag.)" .)