Behind the scenes (9)
I believe the answer is:
backstage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">behind the scenes</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 backstage that I've seen before include "Behind the scenes (theatrically)" , "dressing room area" , "Wings etc" , "away from public view" , "out of the limelight" .)