Becoming; proper (6)
I believe the answer is:
decent
This clue is a double definition.
'becoming' is the first definition.
(synonyms)
'proper' is the second definition.
(similar in meaning)
(Other definitions for decent that I've seen before include "Generous or modest" , "Fitting; satisfactory" , "Honourable or modest" , "Upright" , "Not immodest, generous" .)