Extinct emu-like bird (3)
I believe the answer is:
moa
'extinct emu-like bird' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for moa that I've seen before include "Flightless bird once found in New Zealand" , "Bird's gone for ever" , "Bird no longer" , "Early bird" , "Extinct flightless NZ_bird" .)