Sophisticated, refined (8)
I believe the answer is:
cultured
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">sophisticated</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">refined</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for cultured that I've seen before include "Refined -- well educated" , "Refined; well-read" , "Refined, well-educated" , "like some pearls" , "Well versed in the arts" .)