Bounce back as nymph consorting with Zeus (4)
I believe the answer is:
echo
This clue is a double definition.
'bounce back' is the first definition.
(an echo reflects back from a surface)
'nymph consorting with zeus' is the second definition.
(lover of Zeus in classical mythology)
'as' acts as a link.
(Other definitions for echo that I've seen before include "repetitive" , "Reverberation of sound" , "In Roman mythology, the nymph who loved Narcissus" , "Audio effect" , "One who slavishly copies" .)