Play outside right for •City' (4)
I believe the answer is:
troy
'for city'' is the definition.
(Troy is an example)
'play outside right' is the wordplay.
'play' becomes 'toy' (synonyms).
'outside' is an insertion indicator.
'right' becomes 'r' (abbreviation).
'toy' placed around 'r' is 'TROY'.
(Other definitions for troy that I've seen before include "Besieged city which fell to Wooden Horse" , "System of weights for measuring precious metals and gemstones" , "Ancient city; type of weight" , "System of weights; ancient city in Turkey" , "Hardy sergeant" .)