Immortal notes by a chap from Italy (5)
I believe the answer is:
deity
'immortal' is the definition.
('deity' can be a synonym of 'immortal')
'notes by a chap from italy' is the wordplay.
'notes by' becomes 'de' (I am not sure about the 'by' bit.**).
'a chap' becomes 'al'.
'from' indicates named letters should be taken away.
'italy' with 'al' taken out is 'ity'.
'de'+'ity'='DEITY'
Can you help me to learn more?
(Other definitions for deity that I've seen before include "Refuge" , "Supernatural being" , "Supreme being" , "God or goddess" , "Divinity" .)