World’s lowest lake (4,3)
I believe the answer is:
dead sea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">world's lowest lake</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dead sea that I've seen before include "World's lowest lake" , "River Jordan flows into this" , "Disappearing lake" , "R. Jordan lake" , "Saltwater lake in the Jordan valley" .)