Flaws, defects (6)
I believe the answer is:
faults
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">flaws</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('fault' can be a synonym of 'flaw')</span><br/ ><br/ >'<span class="explanation-format__original">defects</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ ></span>
(Other definitions for faults that I've seen before include "Flaws or failings" , "Defects and failings" , "Weakness or failings" , "Flaws - defects" , "'Flaws, imperfections (6)'" .)