Crossword Genius

Game bird is all dressed (9)

Ross

I believe the answer is:

billiards

'game' is the definition.
(I know that billiards is a type of table game)

'bird is all dressed' is the wordplay.
'dressed' indicates anagramming the letters ('dress' can mean 'prepare').
'bird'+'is'+'all'='birdisall'
'birdisall' with letters rearranged gives 'BILLIARDS'.

(Other definitions for billiards that I've seen before include "Ball game" , "Game played with balls on table with pockets" , "Game with three balls" , "Indoor sport" , "Table game at which Mary Queen of Scots excelled" .)

I've seen this clue in The Telegraph.
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