Crossword Genius

Upset about courage quietly deserting, fortune not favouring one (2,4)

Ross

I believe the answer is:

no luck

I'm a little stuck... Click here to teach me more about this clue!

'upset about courage quietly deserting' is the definition.
I know nothing about this answer so I can't judge whether this works.

'fortune not favouring one' is the wordplay.
I cannot quite understand how this works, but
'fortune' could be 'luck' (synonyms) and 'luck' is present in the answer.
'not' could be 'no' (negative) and 'no' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Independent.
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