Peace Nobelist of 1984
I believe the answer is:
'peace nobelist of 1984' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tutu that I've seen before include "Female ballet costume" , "North African nation" , "Short skirt for ballet dancer" , "Ballet-dancer's skirt" , "The old primate" .)