Spectators (8)

I think it could be either:

audience

watchers

'spectators' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for audience that I've seen before include "which may be given an address" , "Spectators - interview" , "Assembled spectators or listeners" , "House" , "They observe" .)

I've seen this clue in The Telegraph and the Sydney Morning Herald.

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