Bird sacred to ancient Egyptians (4)
I believe the answer is:
ibis
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bird sacred to ancient egyptians</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ibis that I've seen before include "Bird, sacred to ancient Egyptians" , "Large wading birds with down-curved bills" , "Near-colourless mineral" , "Wader worshipped by ancient Egyptians" , "Slowly discharge" .)