At the sides (7)
I believe the answer is:
lateral
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">at the sides</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lateral that I've seen before include "Side branch" , "Towards the side" , "Possibly right" , "Way of thinking" , "Relating to the side" .)