Rough or crude (6)
I believe the answer is:
coarse
I believe this clue is a double definition.
'rough' is the first definition.
(associated in meaning)
'crude' is the second definition.
(synonyms)
(Other definitions for coarse that I've seen before include "Rough in texture or crude in manner" , "Rough or rude" , "Vulgar - unrefined" , "Unpolished -- ribald" , "Rought or crude" .)