Breaking Bad ? Anything but! (8)

I believe the answer is:

smashing

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'breaking' is the definition.
(smashing is a kind of breaking)

I don't understand the remainder of the clue.

(Other definitions for smashing that I've seen before include "Fantastic" , "Wonderful" , "Breaking things - super!" , "Producing tennis shot" , "Excellent; breaking" .)

I've seen this clue in The Independent.

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