Bring latest news of a working tryst (6)

I believe the answer is:

update

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'news of a working tryst' is the definition.
'update' can be an answer for 'news' (update is a kind of news). I am not sure about the 'of a working tryst' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for update that I've seen before include "account of the latest developments" , "Later information" , "Latest information" , "Bulletin" , "Make more modern" .)

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

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