Sensibly devious about a bit of chicanery (6)

I believe the answer is:

sanely

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'sensibly' is the definition.
(I know that sensibly can be written as sanely)

'devious about a bit of chicanery' is the wordplay.
'devious' becomes 'sly' (I've seen this before).
'about' means one lot of letters goes inside another.
'a bit of chicanery' becomes 'ane' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sly' going around 'ane' is 'SANELY'.

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I've seen this clue in the Evening Standard.

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