Answer: echoey

AnswerCrossword Clue
ECHOEYLike the Grand Canyon
ECHOEYLike a cavern
echoeyace vestige
echoeyrepetition or imitation of another reflection
echoeyfull of echos
echoeythe repetition of a sound caused by reflection of sound waves
echoeypercussion result
echoeysponse
echoeysoft repetition of a musical phrase