Limits cabinet ministers having more than one for the road (4)
I believe the answer is:
cars
'limits cabinet ministers having more than one for the road' is the definition.
I can't judge whether this definition defines the answer.
'having more than one for the road' is the wordplay.
'having' becomes 's' (I can't justify this - if you can you should believe this answer much more).
'more than' is a charade indicator (letters next to each other).
'one for the road' becomes 'car' (I've seen this in another clue).
's' put after 'car' is 'CARS'.
Can you help me to learn more?
(Other definitions for cars that I've seen before include "Motor vehicles" , "Private vehicles" , "Automobiles" , "... when these may be driven?" .)