US legislative body (8)
I believe the answer is:
congress
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">us legislative body</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for congress that I've seen before include "US legislative body" , "Meeting of elected or appointed representatives" , "Meeting of delegates" , "Formal meeting" , "Politicians" .)