Not highly cultured (7)
I believe the answer is:
lowbrow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not highly cultured</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lowbrow that I've seen before include "Philistine" , "Mass-market" , "Unsophisticated" , "(Person) uninterested in intellectual pursuits" , "Uncultured (person)" .)