Sacred water lily (5)
I believe the answer is:
lotus
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sacred water lily</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 lotus that I've seen before include "Tropical water-lily" , "Sacred Egyptian water lily" , "One of the lilies" , "the indolent took for eating" , "Mythical plant inducing languor" .)