Piece left over (7)
I believe the answer is:
remnant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">piece left over</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 remnant that I've seen before include "Little bit left" , "Piece or people left over" , "Cloth swatch" , "Piece of leftover fabric" , "Piece of cloth left over" .)