Orbiting body (9)
I believe the answer is:
satellite
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">orbiting body</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 "Part of telecoms system" , "Any celestial body orbiting around a planet or star" , "Body moving around a planet" , "Lackey" , "Heavenly body revolving around a planet" .)