Hawaiian bird (4)
I believe the answer is:
nene
'hawaiian bird' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nene that I've seen before include "Foreign goose" , "Flower" , "Northampton's river" , "River of Peterborough; goose" , "River navigable to Northampton" .)