Orange-and-black butterfly (7)
I believe the answer is:
monarch
'orange-and-black butterfly' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for monarch that I've seen before include "King or butterfly" , "Head of State" , "Butterfly - ruler" , "Stag in Landseer picture" , "one over realm?" .)