Not refined, bringing rowing gear into Church (6)
I believe the answer is:
coarse
'not refined' is the definition.
'rowing gear into church' is the wordplay.
'rowing gear' becomes 'oars'.
'into' means one lot of letters goes inside another.
'church' becomes 'ce' (abbreviation for Church of England).
'oars' placed into 'ce' is 'COARSE'.
'bringing' is the link.
(Other definitions for coarse that I've seen before include "Unrefined; rough" , "Rude, vulgar" , "Rough, harsh" , "Unpolished -- ribald" , "gross" .)