Event; romance (6)
I believe the answer is:
affair
I believe this clue is a double definition.
'event' is the first definition.
(affair is a kind of event)
'romance' is the second definition.
(affair can mean a romantic fling)
(Other definitions for affair that I've seen before include "Concern,matter" , "Matter or concern, perhaps of the heart" , "Secret romance" , "Concern (maybe extra-marital?)" , "Secret liaison" .)