Large wader (4)
I believe the answer is:
ibis
'large wader' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ibis that I've seen before include "Wader with a long down-curved bill" , "Wading bird of tropical waters" , "seaside feeder?" , "Large wading birds with down-curved bills" , "may be sacred?" .)