Crossword Genius

Dark soil disturbed in trade route (4,4)

Ross

I believe the answer is:

silk road

'trade route' is the definition.
(I know that Silk Road is a trade route)

'dark soil disturbed' is the wordplay.
'disturbed' is an anagram indicator (the order of letters is disturbed).
'dark'+'soil'='darksoil'
'darksoil' anagrammed gives 'SILK ROAD'.

'in' acts as a link.

(Other definitions for silk road that I've seen before include "Ancient trade route from China" , "Caravan route" , "Old trade route to China" .)

I've seen this clue in The Independent.
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