Crossword Genius

Greek river bird (6)

Ross

I believe the answer is:

grouse

'bird' is the definition.
(I know that grouse is a type of game bird)

'greek river' is the wordplay.
'greek' becomes 'gr' (abbreviation for Greek).
'river' becomes 'ouse' (Yorkshire river).
'gr'+'ouse'='GROUSE'

(Other definitions for grouse that I've seen before include "No shooting it before 12 August" , "excellent in New Zealand" , "Bird - complaint" , "Bellyache" , "The complaint of a gamebird" .)

I've seen this clue in The Independent.
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