Slightly deviant saga cunningly exposed (2,1,12)

I believe the answer is:

at a disadvantage

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'slightly deviant saga cunningly exposed' is the definition.
I can't judge whether this definition defines the answer.

'slightly deviant saga cunningly' is the wordplay.
'slightly' becomes 'atad' ('a tad' can mean 'slightly' or 'a bit').
'cunningly' indicates anagramming the letters (a cunning or tricky form of the letters).
'deviant'+'saga'='deviantsaga'
'deviantsaga' anagrammed gives 'isadvantage'.
'atad'+'isadvantage'='AT A DISADVANTAGE'

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I've seen this clue in The Daily Express.

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