Avoiding a hole around edge of pavement (4)

I believe the answer is:

kerb

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'edge of pavement' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

(Other definitions for kerb that I've seen before include "Stone edging to footpath" , "Roadside" , "on the borderline?" , "Pavement edging" , "Edge of road" .)

I've seen this clue in The Hindu.

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