Lower the worth of (7)
I believe the answer is:
devalue
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lower the worth of</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for devalue that I've seen before include "Cheapen" , "Reduce the worth of" , "Lower the worth of" , "Underrate" .)