Arena (12)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arena</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that amphitheatre is a type of arena)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for amphitheatre that I've seen before include "Theatre gallery seating area" , "Classical performance area" , "Roman tiered arena" , "Open auditorium" , "Large oval stadium with tiers of seats" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arena</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that arena can be written as stadium)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stadium that I've seen before include "Admit us (anag) - sports ground" , "eg Yankee, Wembley" , "Venue for sporting events, concerts etc" , "Large structure for open-air sports" , "Sports arena" .)