"Nay!" sayer (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nay sayer</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 anti that I've seen before include "'No' voter" , "Opposed to followers of Hitler" , "on the other side" , "Prefix meaning against" , "Policy's opponent" .)