Excessive in quantity (13)
I believe the answer is:
superabundant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">excessive in quantity</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 superabundant that I've seen before include "Abnormally plentiful" , "Copious" , "More than sufficient" , "Extremely plentiful" , "Excessive in quantity" .)