Like chips, say, to be brittle (7)

I believe the answer is:

friable

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'be brittle' is the definition.
(thesaurus)

I can't explain the remainder of the clue.

(Other definitions for friable that I've seen before include "Easily broken down" , "Easily crumbled or crushed into powder" .)

I've seen this clue in the Sydney Morning Herald.

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