Large-billed birds (7)
I believe the answer is:
toucans
'large-billed birds' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for toucans that I've seen before include "Brilliantly coloured birds of tropical America" , "they come with big bills" , "Brilliantly coloured birds with very large beaks" , "Flyers" .)