Rang about valid credit centre (9)

I believe the answer is:

resounded

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'rang' is the definition.
('resound' can be a synonym of 'ring')

'about valid credit centre' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'valid credit centre' becomes 'sounded' (I can't justify this - if you can you should believe this answer much more).
're'+'sounded'='RESOUNDED'

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(Other definitions for resounded that I've seen before include "Echoed, reverberated" , "were widely known" .)

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

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