Motorist waiting for a chance to pass (7)
I believe the answer is:
learner
'motorist' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for learner that I've seen before include "Pupil or apprentice" , "Someone undergoing education" , "New driver" , "Amateur" , "10 [STUDENT], possibly 11 [BOOKISH]" .)