Inundations (6)
I believe the answer is:
floods
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inundations</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 floods that I've seen before include "Large flows of water" , "Inundates" , "Deluges" .)