Racial (6)
I believe the answer is:
ethnic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">racial</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ethnic that I've seen before include "Relating to cultural groups" , "Of the distinct ways of living of a particular group of people" , "Relating to a particular racial group" , "To do with race or nationality" , "Relating to a particular culture" .)