Insignificant or petty (8)
I believe the answer is:
trifling
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">insignificant</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">petty</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for trifling that I've seen before include "Unimportant, trivial" , "Inconsequential" , "Frivolous" , "Of little importance" , "insignificant" .)