Punk style vandalism? Oh, I can't take part (7)
I believe the answer is:
mohican
'punk style' is the definition.
(punk hair style)
'vandalism? oh i can't take part' is the wordplay.
'take part' indicates the answer is hidden within the clue (I've seen 'taking part' mean this).
'MOHICAN' is hidden within 'vandalism oh i cant'.
(Other definitions for mohican that I've seen before include "American Indian - hairstyle" , "American native, 9 [ > HAIRCUT]" , "A Native American people" , "Hair style" , "Punk style" .)