Not factual, inaccurate (6)
I believe the answer is:
untrue
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">not factual</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">inaccurate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for untrue that I've seen before include "Incorrect or false" , "Counter-factual" , "disloyal" , "Not faithful" , "Wrong" .)