Well I never! (5,2)

I think it could be either:

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5,2

5,4

stone me

'well i never' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for stone me that I've seen before include "Wow" , "I'm surprised" , "Astonished exclamation (colloq.)" , "Well I never!" , "Crikey!" .)

I've seen this clue in The Times.

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