Song of songs able to amuse when heard (8)
I believe the answer is:
canticle
'song' is the definition.
(I have seen 'Liturgical song ' mean 'canticle' so perhaps 'song' could also mean 'canticle')
'songs able to amuse when heard' is the wordplay.
I cannot really see how this works, but
'able' could be 'can' and 'can' is present in the answer.
'when' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
This explanation may well be incorrect...
'of' acts as a link.
Can you help me to learn more?
(Other definitions for canticle that I've seen before include "Short hymn" , "is heard in church" , "Liturgical song" , "eg Magnificat" , "Bible-derived song or prayer" .)