Celestial body orbiting around another (9)
I believe the answer is:
satellite
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">celestial body orbiting around another</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for satellite that I've seen before include "Body that revolves around or serves another" , "dependent community" , "sidekick" , "Space traveller" , "Subordinate" .)