Negative answer (3)
I believe the answer is:
nay
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">negative answer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(archaic form of 'no')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nay that I've seen before include "Indeed" , "No - a negative vote" , "Negative response" , "Refusal" , "No (dialect); or rather" .)