Sad Parisian you dressed in bit of lady's underwear (3,2)
I believe the answer is:
cut up
'sad' is the definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I don't see?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for cut up that I've seen before include "collage" , "Maize, rye, corn, etc" , "so treated by another driver?" , "Extremely upset" , "Very unhappy" .)