Appearances can be deceptive, I guess (6)

I believe the answer is:

guises

'appearances' is the definition.
(guise is a kind of appearance)

'deceptive i guess' is the wordplay.
'deceptive' indicates anagramming the letters.
'i'+'guess'='iguess'
'iguess' anagrammed gives 'GUISES'.

'can be' acts as a link.

I've seen this clue in the Evening Standard.

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