Avant-garde (3-3)
'avant-garde' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for way-out that I've seen before include "Bizarre - exit" , "Exit - weird" , "Exit - eccentric" , "Exit, means of egress" , "Strikingly unconventional" .)
(Other definitions for far-out that I've seen before include "Distant or unconventional as in avant-garde" , "Avant-garde; excellent" , "Distant, or slangily unconventional" , "Slangily unconventional or avant garde" , "Unconventional or avant garde - sounds distant" .)