Heavy weights (4)
I believe the answer is:
tons
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">heavy weights</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 tons that I've seen before include "Lots" , "Each is equivalent to 2240 pounds" , "A lot" , "Loads (sl.)" .)