Expresses one's thoughts in union negotiations? (5)

I believe the answer is:

talks

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

I cannot understand how the rest of the clue works.

(Other definitions for talks that I've seen before include "Verbalises" , "Speaks" , "negotiation" , "negotiations" , "Chats; lectures" .)

I've seen this clue in The Globe and Mail.

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