Nymph consorting with Zeus evoked memory (4)
I believe the answer is:
echo
'nymph consorting with zeus' is the definition.
(lover of Zeus in classical mythology)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for echo that I've seen before include "one catches on the rebound?" , "Repetition of sound" , "Reflected sound" , "Reflection of sound wave" , "Bounced sound" .)