Circus act (7)
I believe the answer is:
trapeze
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">circus act</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 trapeze that I've seen before include "Aerobatic device" , "Circus feature" , "Bar for swinger" , "Swinging crossbar" , "Horizontal bar as swing for acrobats" .)