Skill in twirling shown by last character in number one circus act (7)
I believe the answer is:
trapeze
'circus act' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for trapeze that I've seen before include "Flying circus apparatus?" , "High swing" , "circus act" , "Circus bar on ropes" , "What the daring young man in the circus flies on" .)