Accursed Englishman's noonday companion's turned up (6)

I believe the answer is:

goddam

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'up' is the definition.
Both the definition and answer are adjectives. Maybe you can see an association between them that I don't see?

I don't understand the rest of the clue.

Can you help me to learn more?

(Another definition for goddam that I've seen is " Blooming".)

I've seen this clue in The Guardian.

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