Platform, dais (7)
I believe the answer is:
rostrum
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">platform</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that rostrum is a type of platform)</span><br/ ><br/ >'<span class="explanation-format__original">dais</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that dais can be written as rostrum)</span><br/ ><br/ ></span>
(Other definitions for rostrum that I've seen before include "Raised platform" , "At which one may conduct" , "Rum rots (anag)" , "Platform for speaker" , "Platform for orchestra conductor" .)