Shoe, for a time like a spanner in the works? (5)

I believe the answer is:

sabot

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'shoe' is the definition.
(I've seen this in another clue)

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

(Other definitions for sabot that I've seen before include "Wooden-soled 13 down" , "what's afoot?" , "sole support?" , "Simple shoe" , "This from last" .)

I've seen this clue in the Evening Standard.

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