Virtually broken vehicle (3)
I believe the answer is:
bus
'vehicle' is the definition.
(bus is a kind of vehicle)
'virtually broken' is the wordplay.
'virtually' means to remove the last letter (all but the last letter).
'broken' becomes 'bust' (I've seen this before).
'bust' with its last letter taken off is 'BUS'.
(Other definitions for bus that I've seen before include "Public transport vehicle" , "Public service vehicle" , "Coach" , "Road vehicle able to carry many passengers" , "People carrier" .)