Wrestling match
(Other definitions for fight that I've seen before include "Campaign against - quarrel" , "Brawl; argue" , "Contend" , "Spar" , "Attack or engage in combat" .)
'wrestling match' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for bout that I've seen before include "wrestling match" , "period in ring" , "Period of activity or boxing contest" , "Spell; contest" , "Period of illness or boxing match" .)