False rumour or story (6)
I believe the answer is:
canard
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">false rumour</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">story</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I have seen 'Untrue story' mean 'canard' so perhaps 'story' could also mean 'canard')</span><br/ ><br/ ></span>
(Other definitions for canard that I've seen before include "False rumour also from France" , "Unfounded rumour or story" , "A false rumour from France? (6)" , "Ugly rumour" , "Baseless rumour" .)