The most common and most likely answer to this crossword clue is the 8 letter word MISSTATE
I've seen this crossword clue in The Times
M
I
S
S
T
A
T
E
More clues leading to the result MISSTATE
- Wrongly report the condition of a major road
- Falsify view of security service on country
- Incorrectly claim to be late for gallery
- An art gallery’s pin-up, I suppose, to lie
- Avoid gallery displaying fake
- Lie about gallery’s beauty?
- Incorrectly describe the winning beauty of art?
- Misleadingly articulate girl goes to gallery
- Fail to notice gallery, say, in error
- Wrongly specify pine for gallery
Buddy explains!

The straight part
We know that "Wrongly report" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wrongly report = misstate.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does MISSTATE mean?
MISSTATE verb- To make a statement that is in error, inadvertently; to say incorrectly, through a slip of the tongue.