Juan Peron's wife (5)
I believe the answer is:
evita
'juan peron's wife' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for evita that I've seen before include "1996 musical film, starring Madonna" , "1978 Lloyd Webber musical" , "Famous musical" , "Well-known musical" , "Stage musical" .)