Extra run later (3)
I believe the answer is:
bye
I believe this clue is a double definition.
'extra run' is the first definition.
(I've seen this before)
'later' is the second definition.
(I've seen this in another clue)
(Other definitions for bye that I've seen before include "Extra run; farewell" , "[ADIEU]" , "Reason not to play" , "Farewell! (informal)" , "Run scored in cricket from a ball that passes batman" .)