Berber outrage, nothing less, outrageous! (6)
I believe the answer is:
tuareg
'berber' is the definition.
(Tuareg is an example)
'outrage nothing less outrageous' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'less' is a deletion indicator.
'outrageous' indicates an anagram (I've seen this in other clues).
'outrage' with 'o' removed is 'utrage'.
'utrage' is an anagram of 'TUAREG'.
(Other definitions for tuareg that I've seen before include "North African people" , "one who lives on the move" , "One of nomadic pastoral people in N Africa" , "Nomadic Arab of N Africa" , "London district with oldest public picture gallery" .)