They order madras, not when drunk (9)

I believe the answer is:

mandators

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'they order' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'madras not when drunk' is the wordplay.
'when drunk' indicates an anagram (a drunken or disorderly form of the letters).
'madras'+'not'='madrasnot'
'madrasnot' with letters rearranged gives 'MANDATORS'.

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I've seen this clue in The Guardian.

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