You don't need approval to make a CS, just post/update your CS with whichever occupation and await the GM's stamp of approval or else request for change. There are literally tons of occupations for circus peeps, tricks and/or stunts are as vague as it can get.
[URL=http://s248.photobucket.com/user/the_help_you_doll/media/Weasel%20Gifs/tumblr_ney5917Euw1s02vreo1_400_zpsyrfuw6nv.gif.html][IMG]http://i248.photobucket.com/albums/gg175/the_help_you_doll/Weasel%20Gifs/tumblr_ney5917Euw1s02vreo1_400_zpsyrfuw6nv.gif[/IMG][/URL]