Crossword Genius

Copper heard round a northern district daily initially? That's beyond doubt (3,3,5)

Ross

I believe the answer is:

cut and dried

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'beyond doubt' is the definition.
(cut and dried means clear or beyond doubt)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for cut and dried that I've seen before include "to have it [HAIRSTYLE] so treated?" , "prearranged" , "Two things the hairdresser did" , "Tobacco has to be" , "Decided in advance" .)

I've seen this clue in The Telegraph.
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