With pride, she loses in brawling (7)
I believe the answer is:
lioness
'with pride she' is the definition.
(female or 'she' in a pride of lions)
'loses in brawling' is the wordplay.
'brawling' is an anagram indicator.
'loses'+'in'='losesin'
'losesin' with letters rearranged gives 'LIONESS'.
(Other definitions for lioness that I've seen before include "Big beast's mate" , "Female big cat" , "Large cat" , "Fierce female feline" , "Female carnivore" .)