Crossword Genius

Canyon effect (4)

Ross

I believe the answer is:

echo

'canyon effect' 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 "repeated answer" , "Sound heard before" , "What evokes memories" , "Return of sound waves" , "Sound following" .)

I've seen this clue in The Wall Street Journal, the Penny Press and The Star Tribune.
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