Job description: introduce fastening to short trousers (7)

I believe the answer is:

patient

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'job description' is the definition.
(the biblical figure Job was very patient)

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(Other definitions for patient that I've seen before include "Uncomplaining; invalid" , "Long-suffering - person in hospital" , "One being treated" , "case for treatment" , "Doctor's visitor; composed" .)

I've seen this clue in The Times.

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