Football (6)
'football' is the definition.
(I know that soccer is a type of football)
This is all the clue.
(Other definitions for soccer that I've seen before include "The beautiful game?" , "... players playing this (colloquially)" , "American football?" , "Informally, game" , "Roy Keane's game" .)
'football' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for sport that I've seen before include "Fun in ports" , "Eg, cricket" , "Recreation, play" , "Show off" , "form of exercise?" .)
(Other definitions for arena that I've seen before include "where there's competition" , "Area of endeavour" , "Space for public events" , "Playing field or boxing ring" , "Action space in centre of amphitheatre" .)