Crossword Genius

So rudely misbehaving, creating the wrong impression (8)

Ross

I believe the answer is:

delusory

'creating the wrong impression' is the definition.
(delusory means misleading or deceptive)

'so rudely misbehaving' is the wordplay.
'misbehaving' indicates anagramming the letters.
'so'+'rudely'='sorudely'
'sorudely' with letters rearranged gives 'DELUSORY'.

(Other definitions for delusory that I've seen before include "Deceptive" , "Misleading - rudely so (anag)" .)

I've seen this clue in The Telegraph.
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