Lateral surface (4)
I believe the answer is:
side
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lateral surface</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for side that I've seen before include "Affectation" , "group of players" , "superciliousness" , "Pomposity - bias - team" , "Accompanying" .)