Resounding (7)
'resounding' is the definition.
('echo' can be a synonym of 'resound')
This is the entire clue.
(Other definitions for echoing that I've seen before include "Repetition" , "sending back imitations" , "Reverberating" , "Copying" , "Resounding" .)
'resounding' is the definition.
(I've seen this in another clue)
This is the entire clue.