French for 'water' (3)
I believe the answer is:
eau
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">french for water</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 eau that I've seen before include "Perrier water" , "Water in France" , "French water from chateaux" , "Quick to notice things" , "Popular toilet water - . . . de Cologne" .)