As an orator, start speaking out (5)

I believe the answer is:

spout

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'out' is the definition.
(thesaurus)

I cannot understand how the remainder of the clue works.

(Other definitions for spout that I've seen before include "Projecting lip, on a kettle say" , "Hold forth at length" , "Make speech; part of teapot" , "Teapot pourer" , "Talk (rubbish); part of pot" .)

I've seen this clue in the Evening Standard.

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