Threats due to bold reappraisal (12)

I believe the answer is:

stouthearted

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'threats due to bold reappraisal' is the definition.
I can't tell whether this defines the answer.

'threats due to bold reappraisal' is the wordplay.
'threats due to' anagrams to 'STOUTHEARTED'.
But, I am unsure how this is indicated.

Can you help me to learn more?

(Another definition for stouthearted that I've seen is " Courageous, resolute".)

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

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