Jet stream in northern location (9)

I believe the answer is:

blackburn

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'northern location' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'jet stream' is the wordplay.
'jet' becomes 'black' (similar in meaning).
'stream' becomes 'burn' (a burn is a small stream).
'black'+'burn'='BLACKBURN'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for blackburn that I've seen before include "Rovers, maybe" , "Lancashire town, home to the Rovers since 1875" .)

I've seen this clue in The Independent.

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