Acrobat's swing (7)
I believe the answer is:
trapeze
'acrobat's swing' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for trapeze that I've seen before include "What the daring young man in the circus flies on" , "Circus acrobatsO swing" , "Circus attraction" , "Swing used by circus acrobats" , "Apparatus for circus acrobats" .)