Motorist awaiting chance to pass? (7)

I believe the answer is:

learner

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'motorist' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for learner that I've seen before include "Unqualified driver" , "He displays the L-plate" , "Amateur" , "Scholar - novice" , "who needs plates" .)

I've seen this clue in The Sun.

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