Went out with (5)
I believe the answer is:
dated
'went out with' is the definition.
('date' can be a synonym of 'go out with')
This is all the clue.
(Other definitions for dated that I've seen before include "old > saw" , "Old-fashioned" , "Went out with - old hat" , "Walked out with" , "Revealed the age of" .)