Conventional, correct (6)
I believe the answer is:
proper
This clue is a double definition.
'conventional' is the first definition.
(I've seen this before)
'correct' is the second definition.
(associated in meaning)
(Other definitions for proper that I've seen before include "Genuine; respectable" , "Appropriate description" , "Correct; respectable" , "Real; genuine" , "Genuine; part of church service" .)