Japanese band seen in Bielsko-Biala (3)
I believe the answer is:
obi
'japanese band' is the definition.
(type of Japanese belt)
'in bielsko-biala' is the wordplay.
'in' says the answer is hidden in the clue.
'OBI' is hidden in the letters of 'bielsko biala'.
'seen' acts as a link.
(Other definitions for obi that I've seen before include "Form of witchcraft" , "Broad sash worn with a kimono" , "magic" , "Spells" , "Caribbean's charming" .)