Not highly cultured (7)
I believe the answer is:
lowbrow
'not highly cultured' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for lowbrow that I've seen before include "Philistine" , "Mass-market" , "Unsophisticated" , "(Person) uninterested in intellectual pursuits" , "Uncultured (person)" .)