Crossword Genius

Charmingly urbane upstart save for clothes (5)

Ross

I believe the answer is:

suave

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

'charmingly urbane' is the definition.
'suave' can be an answer for 'urbane' (I've seen this before). I'm unsure of the 'charmingly' bit.

'upstart save for clothes' is the wordplay.
I cannot quite see how this works, but
'upstart' could be 'u' (start of the word 'up') and 'u' is located in the answer.
The remaining letters 'save' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for suave that I've seen before include "Charming, confident" , "Smoothly sophisticated" , "Smooth-mannered and sophisticated" , "Charming and sophisticated though insincere" , "Smoothly affable" .)

I've seen this clue in the Sydney Morning Herald.
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