City score without ball (4)
I believe the answer is:
troy
'city' is the definition.
(Troy is an example)
'score without ball' is the wordplay.
'score' becomes 'try'.
'without' means one lot of letters goes inside another ('without' can be similar in meaning to 'outside').
'ball' becomes 'o' (letter resembling a ball).
'try' going around 'o' is 'TROY'.
(Other definitions for troy that I've seen before include "The war for it, Homer" , "City of Paris" , "Ancient city where fair Helen was a captive" , "The pound - had twelve ounces, ancient city" , "Ancient city of the Iliad" .)