One flighty brute, not sick of Proust (3)
I believe the answer is:
ani
This could be a double definition.
'one flighty brute' is the first definition.
'ani' can be an answer for 'brute' (ani is a kind of brute). I am unsure of the 'one flighty' bit.
'not sick of proust' is the second definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
Can you help me to learn more?
(Other definitions for ani that I've seen before include "One winged" , "Black bird" , "Tropical bird" , "Bird of the cuckoo family" , "Indigo dye." .)