Possibly a scene of a spirited comeback (6)
I believe the answer is:
seance
'a spirited comeback' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'possibly a scene' is the wordplay.
'possibly' indicates an anagram.
'a'+'scene'='ascene'
'ascene' is an anagram of 'SEANCE'.
'of' is the link.
Can you help me to learn more?
(Other definitions for seance that I've seen before include "Spiritualist meeting to contact the dead" , "Meeting in which medium attempts to contact the dead" , "Spirit meeting" , "Medium's session" , "Meeting seeking to contact the dead" .)