River sees work attempt missing (5)

I believe the answer is:

indus

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'river' is the definition.
(Indian river)

I cannot understand how the rest of the clue works.

(Other definitions for indus that I've seen before include "South Asian river" , "Asian runner" , "Pakistani river" , "Constellation - Pakistan river" , "River of India/Pakistan" .)

I've seen this clue in The Daily Express.

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