Appearance, facet (6)
I believe the answer is:
aspect
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">appearance</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(aspect is a kind of appearance)</span><br/ ><br/ >'<span class="explanation-format__original">facet</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for aspect that I've seen before include "Face" , "View, outlook" , "Characteristic to be considered" , "'View, perspective (6)'" , "Look; side of building" .)