Bird inedible, did you say? (4)

I believe the answer is:

fowl

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'bird' is the definition.
(I know that bird can be written as fowl)

I don't understand how the rest of the clue works.

(Other definitions for fowl that I've seen before include "Bird, maybe domestic" , "Bird kept for eggs and meat" , "eg Chicken" , "Poultry bird" , "eg hen" .)

I've seen this clue in The Times.

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