Ness or Lomond (4)
I believe the answer is:
loch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ness or lomond</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 loch that I've seen before include "A Scottish lake like Ness" , "Scottish word for lake" , "Scots lake" , "Ness or Lomond, for instance" , "Body of (Scottish?) water" .)