Stand for sly beast doing away with wife? (5)

I believe the answer is:

easel

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'stand' is the definition.
(stand for an artist's canvas)

I can't explain the remainder of the clue.

(Other definitions for easel that I've seen before include "Three-legged supporting frame" , "stand for creativity" , "Board stanchion" , "Constable's stand?" , "Supporter for the artist" .)

I've seen this clue in The Independent.

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