Gathering of spectators or listeners (8)
I believe the answer is:
audience
I believe this is a double definition.
'gathering of spectators' is the first definition.
(I've seen this before)
'listeners' is the second definition.
(I have seen 'The listeners ' mean 'audience' so perhaps 'listeners' could also mean 'audience')
(Other definitions for audience that I've seen before include "Formal interview with very important person" , "Body of listeners" , "Assembly of spectators" , "House" , "Group of spectators or listeners" .)