Something of little value (9)
I believe the answer is:
bagatelle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">something of little value</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 bagatelle that I've seen before include "Something trivial" , "trifling amount" , "game at the tables?" , "lovely trinket" , "musical composition" .)