Cheer with echo delayed (5)
I believe the answer is:
elate
'cheer' is the definition.
(I've seen this before)
'with echo delayed' is the wordplay.
'with' says to put letters next to each other.
'echo' becomes 'e' (phonetic alphabet: alpha, bravo, charlie etc.).
'delayed' becomes 'late' (I've seen this before).
'e' next to 'late' is 'ELATE'.
(Other definitions for elate that I've seen before include "Exhilarate, put in high spirits" , "Lift (the spirits)" , "Make delighted or proud" , "cheer" , "Fill with high spirits" .)