Crossword Genius

They work at their last cold drinks (8)

Ross

I believe the answer is:

cobblers

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'drinks' is the definition.
(cobbler is a kind of drink)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for cobblers that I've seen before include "More than one at last" , "They make and mend shoes" , "Shoe repairers" , "drinks > moonshine" , "Rubbish - shoe menders" .)

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