Long-billed wader (4)
I believe the answer is:
ibis
'long-billed wader' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ibis that I've seen before include "leggy bird" , "sacred creature of Egypt" , "Wader once sacred in Egypt" , "State of central US, capital Lincoln" , "Slowly discharge" .)