Answer:

echoing

AnswerCrossword Clue
ECHOINGComing back
ECHOINGIterative
ECHOINGReverberating
ECHOINGImitating
ECHOINGBouncing back
ECHOINGSaying again
ECHOINGReverberant.
ECHOINGResounding.
ECHOINGRepeating
ECHOINGRepetitious
ECHOINGParrot's activity
ECHOINGParrotlike behavior
ECHOINGComing back in waves?
ECHOINGBouncing off the Grand Canyon walls
ECHOINGBouncing off walls
ECHOINGSaying likewise
ECHOINGImitative
ECHOINGParrot's forte
ECHOINGYes man's specialty
ECHOINGBouncing off the walls