Governing body (6)
I believe the answer is:
senate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">governing body</span>' is the definition.<br/ ><span class="explanation-format__explanation">(type of governing body)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for senate that I've seen before include "Second house of the Oireachtas" , "The upper house in parliament or oireachtas" , "Roman state council" , "Upper council of university" , "Governors here" .)