Late gathering (6)
I believe the answer is:
soiree
(Other definitions for soiree that I've seen before include "Party assembled in the evening" , "Evening function" , "Cultural at-home" , "A social gathering in the evening" .)
I believe the answer is:
soiree
(Other definitions for soiree that I've seen before include "Party assembled in the evening" , "Evening function" , "Cultural at-home" , "A social gathering in the evening" .)