Bands taking a journey in a ship (6)
I believe the answer is:
strips
'bands' is the definition.
(I've seen this before)
'a journey in a ship' is the wordplay.
'a journey' becomes 'trip' (trip is a kind of journey).
'in' is an insertion indicator.
'a ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'trip' going within 'ss' is 'STRIPS'.
'taking' acts as a link.
(Other definitions for strips that I've seen before include "outfits" , "layers" , "Takes off clothes" , "Gets undressed" , "Long narrow pieces" .)