East European (4)
I believe the answer is:
slav
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">east european</span>' is the definition.<br/ ><span class="explanation-format__explanation">(the Slavs are a European people)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for slav that I've seen before include "Eastern European" , "One coming from Eastern Europe or Asian Russia" , "A Russian, say" , "Person speaking one of related languages of Euro-Asian border" , "Native of eastern Europe, perhaps" .)