Announcing glider can change (9)

I believe the answer is:

declaring

'announcing' is the definition.
('declare' can be a synonym of 'announce')

'glider can change' is the wordplay.
'change' indicates an anagram.
'glider'+'can'='glidercan'
'glidercan' anagrammed gives 'DECLARING'.

(Another definition for declaring that I've seen is " statement-making".)

I've seen this clue in the Sydney Morning Herald.

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