Edgy fashion is enigmatic, mysterious and superb (11)
I believe the answer is:
magnificent
'superb' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for magnificent that I've seen before include "Wonderful" , "brilliant" , "like Lorenzo de' Medici" , "Seven in picture" , "Splendid" .)