Swear to find a fresh answer (7)

I believe the answer is:

resolve

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'answer' is the definition.
(I know that answer can be written as resolve)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for resolve that I've seen before include "Firmly decide" , "bottle" , "break up" , "Determine firmly" , "Firmness of purpose" .)

I've seen this clue in the Evening Standard.

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