Would broken door meet a car instrument? (8)

I believe the answer is:

odometer

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'instrument?' is the definition.
(instrument for measuring distance travelled)

'would broken door meet a car' is the wordplay.
'door meet' anagrams to 'ODOMETER'.
However, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for odometer that I've seen before include "Distance-measuring instrument in vehicle" , "It shows distance travelled" , "Distance measuring device" , "Instrument in car to record mileage" , "One could be in a dash" .)

I've seen this clue in the Sydney Morning Herald.

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