Underneath (5)
I believe the answer is:
below
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">underneath</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for below that I've seen before include "Lower than" , "Subordinate to" , "Inferior" , "second-rate" , "in one's cabin" .)