Unclear; dirty (5)
I believe the answer is:
muddy
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">unclear</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">dirty</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that dirty can be written as muddy)</span><br/ ><br/ ></span>
(Other definitions for muddy that I've seen before include "Bespattered" , "Slimy" , "Not bright or clear" , "Mucky, marshy" , "Covered in mire" .)