Does the careerist need a company one? (3)
I believe the answer is:
car
'one?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for car that I've seen before include "Passenger vehicle" , "Railway carriage; vehicle" , "estate, perhaps" , "One for the road?" , "Hatchback, say?" .)