"Rent" character based on a seamstress in "La Bohme" (4)
I believe the answer is:
mimi
(Other definitions for mimi that I've seen before include "unfortunate sewer" , "I'm, I'm mad about the heroine in 'La Boheme'" , "Puccini's seamstress" , "La Boheme character (whose tiny hand is frozen)" , "Puccini heroine" .)