Crossword Genius

Gloomy over river (5)

Ross

I believe the answer is:

douro

'river' is the definition.
(I've seen this before)

'gloomy over' is the wordplay.
'gloomy' becomes 'dour' (I've seen this before).
'over' becomes 'o' (cricket abbreviation).
'dour'+'o'='DOURO'

(Other definitions for douro that I've seen before include "European runner" , "Iberian river" , "Hollow bubbling sound" .)

I've seen this clue in The Times.
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