Fiddle oil production in Bordeaux, for example, according to the French (6)

I believe the answer is:

violin

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'fiddle' is the definition.
('violin' can be a synonym of 'fiddle')

I don't understand how the rest of the clue works.

(Other definitions for violin that I've seen before include "Nigel Kennedy instrument" , "Bowed instrument" , "Instrument with bow" , "It'a played with a bow" , "An elevated fiddle" .)

I've seen this clue in the Irish Times.

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