We backed in a vehicle and skidded (6)
I believe the answer is:
slewed
'skidded' is the definition.
('slew' can be a synonym of 'skid')
'we backed in a vehicle' is the wordplay.
'backed' says the letters should be written backwards.
'in' is an insertion indicator.
'a vehicle' becomes 'sled' (sled is a kind of vehicle).
'we' written backwards gives 'ew'.
'ew' put inside 'sled' is 'SLEWED'.
'and' acts as a link.
(Other definitions for slewed that I've seen before include "Swung round; drunk" , "Swung round suddenly" .)