Difficult to lift (5)
I believe the answer is:
heavy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">difficult to lift</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 heavy that I've seen before include "serious!" , "Villain" , "Difficult to lift" , "Of great weight" , "Hard to lift" .)