Orbit — monarchy (5)
I believe the answer is:
realm
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">orbit</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that realm is a type of orbit)</span><br/ ><br/ >'<span class="explanation-format__original">monarchy</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that realm is a type of monarchy)</span><br/ ><br/ ></span>
(Other definitions for realm that I've seen before include "Kingdom or sphere" , "Area of influence" , "Royal domain" , "Dominion" , "field of study" .)