Father of Horus (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">father of horus</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 osiris that I've seen before include "underworld boss" , "Husband of Isis, father of Horus - sis or I (anag)" , "dead judge?" , "Egypt. god of dead" , "one held to be divine" .)