Stack of stuff (4)
I believe the answer is:
pile
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stack of stuff</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pile that I've seen before include "Part of reactor" , "Nap of a carpet" , "A heap or stack" , "large building" , "Fortune" .)