Was inclined to have music in a vehicle (6)
I believe the answer is:
sloped
'was inclined' is the definition.
(I've seen this before)
'music in a vehicle' is the wordplay.
'music' becomes 'op' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'a vehicle' becomes 'sled' (sled is a kind of vehicle).
'op' placed within 'sled' is 'SLOPED'.
'to have' is the link.
Can you help me to learn more?
(Other definitions for sloped that I've seen before include "Running downwards" , "Was inclined" , "Tilted, canted" .)