Vehicle always contracted for race (6)
I believe the answer is:
career
'contracted for race' is the definition.
'career' can be an answer for 'race' (career can mean to race or move out of control). I'm unsure of the 'contracted for' bit.
'vehicle always' is the wordplay.
'vehicle' becomes 'car' (car is a kind of vehicle).
'always' becomes 'eer' (poetic way of saying ever).
'car'+'eer'='CAREER'
Can you help me to learn more?
(Other definitions for career that I've seen before include "Rush wildly" , "Run; calling" , "Job (supposedly for life?)" , "course securing professional employment" , "Business course through life" .)