Wasted (4,3,5)
I believe the answer is:
down the drain
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wasted</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 down the drain that I've seen before include "Wasted" , "Where water board worker might be" .)