"Macbeth" excerpt (4)
I believe the answer is:
aria
'macbeth excerpt' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for aria that I've seen before include "selection of opera" , "Operatic air" , "Operatic solo, duet, etc" , "Operatic part" , "Musical performance" .)