Romantic rendezvous (5)
I believe the answer is:
tryst
'romantic rendezvous' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tryst that I've seen before include "where lovers meet" , "meeting-place" , "Romantic assignation" , "Rendezvous - assignation" , "Pre-arranged (secret) meeting" .)