Elegant but would become loud if Charlie replaced George (9)

I believe the answer is:

glamorous

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'elegant' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for glamorous that I've seen before include "Gorgeous" , "Alluring" , "Sophisticated and stylish" , "Alluringly appealing" , "Excitingly attractive" .)

I've seen this clue in The Guardian.

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