Got down from a vehicle (8)
I believe the answer is:
alighted
'got down from a vehicle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for alighted that I've seen before include "Get down from a vehicle" , "Got down from, plane or train" , "Moved to platform" , "Got down from a vehicle" , "Came down" .)