Stimulate auditory perception (7)
I believe the answer is:
insight
'perception' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for insight that I've seen before include "Clear understanding" , "vision" , "Imaginative penetration" , "The ability to perceive the true nature of something" , "ability to perceive clearly" .)