Forewarn and get a pincer out just so (10)

I believe the answer is:

precaution

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'forewarn' is the definition.
(thesaurus)

'get a pincer out just so' is the wordplay.
'a pincer out' can be anagrammed to 'PRECAUTION'.
But, I'm unsure how the anagram is indicated.

'and' acts as a link.

Can you help me to learn more?

(Other definitions for precaution that I've seen before include "Advance measure taken against an undesirable development" , "Safety measure" , "foresight" , "Measure taken in case it proves to be necessary" , "Safeguard" .)

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

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