Educational progress, getting used to part of circuit (8,5)
I believe the answer is:
learning curve
'educational progress' is the definition.
I know nothing about this answer so I can't tell whether this works.
'getting used to part of circuit' is the wordplay.
I cannot really see how this works, but
'getting' could be 'earning' (earning is a kind of getting) and 'earning' is found in the answer.
'part' could be 'curve' (curve is a kind of part) and 'curve' is located in the answer.
A single letter 'l' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for learning curve that I've seen before include "Process of increasing understanding" , "Rate of progress in acquiring new skills" , "Speed of study" , "Process of gaining knowledge" , "Gradual acquisition of experience" .)