Stop luxury car rammed by a road-mending vehicle (11)
I believe the answer is:
steamroller
'vehicle' is the definition.
(I know that steamroller is a type of vehicle)
'stop luxury car rammed by a road-mending' is the wordplay.
I cannot quite see how this works, but
'car' could be 'roller' (I've seen this before) and 'roller' is located in the answer.
'a' is present in the answer.
'stop' could be 'stem' (stem can mean to stop or interrupt) and 'stem' is located in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for steamroller that I've seen before include "Knock flat" , "slow vehicle" , "Forcibly crush" , "Heavy vehicle" .)