Musical piece duo plays with peril (8)
I believe the answer is:
preludio
'musical piece' is the definition.
'preludio' can be an answer for 'piece' (I have seen 'Piece of music' mean 'preludio' so perhaps 'piece' could also mean 'preludio'). I am not sure about the 'musical' bit.
'duo plays with peril' is the wordplay.
'plays with' is an anagram indicator.
'duo' mixed up with 'peril' gives 'PRELUDIO'.
Can you help me to learn more?
(Other definitions for preludio that I've seen before include "Introductory music (Ital.)" , "Piece of music" .)