Not factual, inaccurate (6)
I believe the answer is:
untrue
I believe this is a double definition.
'not factual' is the first definition.
(I've seen this in another clue)
'inaccurate' is the second definition.
(I've seen this in another clue)
(Other definitions for untrue that I've seen before include "Incorrect or false" , "Counter-factual" , "disloyal" , "Not faithful" , "Wrong" .)