Romantic appointment (4)
'romantic appointment' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for date that I've seen before include "Year or day when an event occurred" , "To reveal age" , "Small fruit or social appointment" , "sell-by, for example" , "A social appointment - check calendar" .)
(Other definitions for tryst that I've seen before include "Pre-arranged (secret) meeting" , "Rendezvous - assignation" , "Secret rendezvous between lovers" , "Date" , "meeting with another person" .)