Ceremonial seat (6)
I believe the answer is:
throne
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ceremonial seat</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 throne that I've seen before include "Ceremonial chair for bishop or king" , "Seat of royal power" , "Seat of monarch" , "Seat of authority" , "Chair of state" .)