To do so seems unfriendly to a skinhead (5)
I believe the answer is:
scold
'to do so' is the definition.
I can't judge whether this defines the answer.
'unfriendly to a skinhead' is the wordplay.
'unfriendly' becomes 'cold' (similar in meaning).
'to a' is a charade indicator (letters next to each other) (I've seen this in other clues).
'skinhead' becomes 's' (head letter of 'skin').
'cold' after 's' is 'SCOLD'.
'seems' is the link.
Can you help me to learn more?
(Other definitions for scold that I've seen before include "Chide - fishwife" , "Castigate" , "Rate" , "Angrily rebuke" , "Chide, rebuke" .)