Yodeler's feedback (4)
I believe the answer is:
echo
'yodeler's feedback' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for echo that I've seen before include "She loved Narcissus - it's recalled" , "Reflect in Czechoslovakia" , "Reflection of sound waves" , "Close imitation" , "E; reverberation" .)