Wearing Sikh headdress with edges trimmed, looking sophisticated (6)
I believe the answer is:
urbane
'sophisticated' is the definition.
(synonyms)
'wearing sikh headdress with edges trimmed' is the wordplay.
'wearing sikh headdress' becomes 'ane' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'with' says to put letters next to each other.
'edges' becomes 'curbs' (curb is a kind of edge).
'trimmed' indicates the central letters (the external letters are trimmed from the word).
The centre of 'curbs' is 'urb'.
'ane' put after 'urb' is 'URBANE'.
'looking' acts as a link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for urbane that I've seen before include "Cultured" , "Refined and civilised" , "Cosmopolitan" , "Elegant and sophisticated - sounds like city type" , "Suave, refined, courteous" .)