Platform for actors (5)
I believe the answer is:
stage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">platform for actors</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for stage that I've seen before include "Acting platform; coach" , "Section (of journey)" , "Platform for actors" , "horse-drawn vehicle" , "Rostrum" .)