Pleasant sounds (5)
I believe the answer is:
music
'pleasant sounds' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for music that I've seen before include "orchestral work" , "Organised notes (that must sometimes be faced)" , "Composed sounds" , "(Pleasant) sequence of sounds" , "Orsino's food of love (Twelfth Night)" .)