Faulty road manoeuvre finished male ox (9)
I believe the answer is:
oversteer
'faulty road manoeuvre' is the definition.
The definition suggests a verb in its base form which matches the answer.
'finished male ox' is the wordplay.
'finished' becomes 'over' (similar in meaning).
'male ox' becomes 'steer' (steer can mean a male ox).
'over'+'steer'='OVERSTEER'
Can you help me to learn more?
(Other definitions for oversteer that I've seen before include "Fault in vehicle's performance" , "Mechanical fault in vehicle" , "(Of car) turn more sharply than intended" , "Turn (car) more sharply than desired" , "(Of vehicle) exaggerate turning motion" .)