Irregular in quality (6)
I believe the answer is:
patchy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">irregular in quality</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 patchy that I've seen before include "Often repaired" , "Uneven in quality like repaired clothes" , "Sporadic, irregular" , "Irregular in quality" , "Uneven in quality - mended too often" .)