Kit back on vehicle for band (6)
I believe the answer is:
stripe
'band' is the definition.
('stripe' can be a synonym of 'band')
'kit back on vehicle' is the wordplay.
'kit' becomes 'strip' (I've seen this before).
'back on' says to take the final letters (the letter at the back).
The last letter of 'vehicle' is 'e'.
'strip'+'e'='STRIPE'
'for' acts as a link.
(Other definitions for stripe that I've seen before include "Broad band" , "Distinctive band" , "Piece of braid indicating military rank" , "Long band of a different colour" , "Priest (anag)" .)