Glib issue about a bird (4)

I believe the answer is:

ibis

'a bird' is the definition.
(ibis is a kind of bird)

'glib issue about' is the wordplay.
'about' indicates the answer is hidden within the clue (the clue goes around or about the answer).
'IBIS' is hidden within 'glib issue'.

(Other definitions for ibis that I've seen before include "Retreat" , "Bird worshipped in Ancient Egypt" , "seaside feeder?" , "Slowly discharge" , "Long-legged wading bird" .)

I've seen this clue in The Daily Express.

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