60s nonconformist (6)
I believe the answer is:
hippie
'60s nonconformist' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hippie that I've seen before include "60s dropout" , "1960s' dropout" , "Sixties youth" , "Sixties dropout" , "Rebel of the 1960s" .)