Sacred Egyptian bird (4)
I believe the answer is:
ibis
'sacred egyptian bird' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ibis that I've seen before include "Bird, sacred to ancient Egyptians" , "Bird venerated by ancient Egyptians" , "may be sacred?" , "Sacred Egyptian bird" , "Near-colourless mineral" .)