Ceremonial sport (4)
I believe the answer is:
sumo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ceremonial sport</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sumo that I've seen before include "Japanese wrestling sport of over-weight men" , "Jap. wrestling" , "slappers fighting?" , "Large Japanese wrestler" , "Japanese form of wrestling" .)