Unrefined performance art hyped somewhat (6)
I believe the answer is:
earthy
'unrefined' is the definition.
(I've seen this before)
'performance art hyped somewhat' is the wordplay.
'somewhat' says the answer is hidden in the clue.
'EARTHY' is hidden in the letters of 'performance art hyped'.
(Other definitions for earthy that I've seen before include "Crudely uninhibited" , "Vulgar, of the soil" , "Head covering" , "where we live" , "Sensible and practical - crude" .)