A scene about meeting with ghosts? (6)

I believe the answer is:
seance
'with ghosts?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'a scene about' is the wordplay.
'about' indicates an anagram.
'a'+'scene'='ascene'
'ascene' is an anagram of 'SEANCE'.
'meeting' is the link.
Can you help me to learn more?
(Other definitions for seance that I've seen before include "spirited meeting" , "Sitting - can see (anag)" , "Spiritualist meeting, all hold hands" , "Meeting to contact the spirits of the dead" , "Spiritualist sitting" .)
