Glut, surplus (13)
I believe the answer is:
overabundance
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">glut</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">surplus</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for overabundance that I've seen before include "Excess quantity" , "Surplus, excess" , "Excessive quantity" , "Glut" .)