Vatican City masterpiece (5)
I believe the answer is:
pieta
'vatican city masterpiece' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pieta that I've seen before include "Sculpture of Mary grieving over body of Jesus" , "Statue of Mary with the dead Christ" , "Tape I made of Mary and body of Jesus" , "weeping figure" , "religious work of art" .)