Deceiver (4)
I believe the answer is:
liar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deceiver</span>' is the definition.<br/ ><span class="explanation-format__explanation">(liar is a kind of deceiver)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for liar that I've seen before include "One not telling the truth" , "Person telling stories" , "Fabricator" , "Fibber" , "Rail at a prevaricator" .)