Con flier (4)

I believe the answer is:

rook

I believe this is a double definition.

'con' is the first definition.
('rook' can be a synonym of 'con')

'flier' is the second definition.
(rook is a kind of birdanimal)

(Other definitions for rook that I've seen before include "16" , "Swindle; castle" , "man in marginalised position, initially" , "Gregarious black bird" , "Black bird - cheat - chess piece" .)

I've seen this clue in The Telegraph.

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