Avant-garde piece from talented gypsy (4)
I believe the answer is:
edgy
'avant-garde' is the definition.
'piece from talented gypsy' is the wordplay.
'piece' indicates the answer is hidden within the clue.
'EDGY' can be found hidden inside 'from talented gypsy'.
(Other definitions for edgy that I've seen before include "Red shade" , "Jittery" , "In a tense state" , "Challengingly experimental" , "Anxious" .)