New Zealander missing out on flight? (4)

I believe the answer is:

kiwi

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'new zealander' is the definition.
(informal term for someone from New Zealand)

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

Can you help me to learn more?

(Other definitions for kiwi that I've seen before include "apteryx" , "one with big bill" , "Flightless NZ bird" , "N Zealand bird" , "New Zealander's bird" .)

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

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