Have on (5)
'have on' is the definition.
(synonyms)
This is all the clue.
(Other definitions for wear that I've seen before include "___ and tear" , "North-east flower" , "Tackle" , "Durability" , "Become tiresome" .)
'have on' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sport that I've seen before include "Recreation, play" , "entertainment" , "Physical exertion and competition" , "Games" , "Wear - game - generous type" .)