Crossword Genius

Shout thanks, getting more gold (9)

Ross

I believe the answer is:

yellowing

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

'getting more gold' is the definition.
I can't tell whether this defines the answer.

'shout thanks' is the wordplay.
'shout' becomes 'yell' (synonyms).
'thanks' becomes 'owing' (I am not sure about this - if you are sure you should believe this answer much more).
'yell'+'owing'='YELLOWING'

Can you help me to learn more?

(Another definition for yellowing that I've seen is " showing effects of age".)

I've seen this clue in The Independent.
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