Fierce dispute (6,5)
I believe the answer is:
battle royal
(Other definitions for battle royal that I've seen before include "long row" , "Fiercely contested fight" , "Fierce fight" , "Fiercely contested dispute" , "Fiercely-contested fight" .)
I believe the answer is:
battle royal
(Other definitions for battle royal that I've seen before include "long row" , "Fiercely contested fight" , "Fierce fight" , "Fiercely contested dispute" , "Fiercely-contested fight" .)