One who is working at last (9)

I believe the answer is:

shoemaker

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'one who is working at last' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

This is all the clue.

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(Other definitions for shoemaker that I've seen before include "Footwear manufacturer" , "Oxford producer" , "Cordwainer" , "Cobbler" , "snob" .)

I've seen this clue in The Telegraph.

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