Hit by a vehicle – and not cared for (3,4)
I believe the answer is:
run down
'hit by a vehicle' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for run down that I've seen before include "synopsis" , "Drained" , "In weakened health" , "In a neglected state" , "criticised?" .)