Turn up (6)
'turn up' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for arrive that I've seen before include "Drop in" , "Make it" , "Come to a destination" , "emerge" , "Get there" .)
(Other definitions for appear that I've seen before include "Come on the market" , "Show up like ghost" , "Come into sight, materialise" , "Present oneself" , "Become visable" .)
(Other definitions for aerialist that I've seen before include "Highly-regarded performer" , "skier" , "trapeze artist" , "Trapeze acrobat" .)
'turn up' is the definition.
(both can mean to arrive)
This is the entire clue.
(Other definitions for come that I've seen before include "' - - fly with me'" , "Arrive" , "Turn up" , "Make a forceful impression" , "See 13 across" .)