Dress for the south of France? (4)

I believe the answer is:

midi

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'south of france' is the definition.
('Le Midi' is a French term for the south of France)

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(Other definitions for midi that I've seen before include "The south of France; a skirt length" , "Southern part of France" , "Half-length coat" , "Calf-length skirt" , "Cover reaching calves" .)

I've seen this clue in The Telegraph.

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