Earthy, ribald (5)
I believe the answer is:
crude
This clue is a double definition.
'earthy' is the first definition.
(I know that earthy can be written as crude)
'ribald' is the second definition.
(thesaurus)
(Other definitions for crude that I've seen before include "foul-mouthed?" , "Cured (anag.)" , "Petroleum" , "Lacking refinement" , "Tasteless, not refined" .)