A scoundrel actor's caught out with troublemakers (9)

I believe the answer is:

agitators

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'troublemakers' is the definition.
(agitator is a kind of troublemaker)

I don't understand the remainder of the clue.

(Other definitions for agitators that I've seen before include "revolutionaries" , "Rabble-rousers" , "We wind up" , "A gait rots the stirrers" .)

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

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