Lacking consistency (6)
I believe the answer is:
spotty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lacking consistency</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for spotty that I've seen before include "patchy" , "Freckled" , "Covered in blotches" , "irregular" , "With skin blemishes" .)