Assents asea
I believe the answer is:
ayes
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">assents asea</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 ayes that I've seen before include "Nautical positive responses" , "The yes-votes at committee meeting" , "Votes of approval during 5 Down" , "The yes votes at committee meeting" , "Sounds of agreement" .)