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' means one lot of letters goes inside another.
'a ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'trip' placed 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" .)