Crossword Genius

One driven with some lack of care? (3)

Ross

I believe the answer is:

car

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'one driven with some lack' is the first definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'care?' is the second definition.
(car care is a kind of care)

'of' acts as a link.

Can you help me to learn more?

(Other definitions for car that I've seen before include "Hatchback, say?" , "Railway carriage; vehicle" , "Means of transport" , "saloon perhaps" , "Automobile" .)

I've seen this clue in the Evening Standard.
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