Perez of "Do the Right Thing” (5)
I believe the answer is:
rosie
'perez of do the right thing' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rosie that I've seen before include "Female" , "Cider girl" , "literary drinking companion" , "Old song: 'Sweet ..... O'Grady'" , "- - Lee (sl.)" .)