Was presiding when vows are renewed (7)

I believe the answer is:

oversaw

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'was presiding' is the definition.
I can't tell whether this definition defines the answer.

'vows are renewed' is the wordplay.
'renewed' is an anagram indicator.
'vows'+'are'='vowsare'
'vowsare' with letters rearranged gives 'OVERSAW'.

'when' acts as a link.

Can you help me to learn more?

(Other definitions for oversaw that I've seen before include "Supervised" , "What supervisor did" , "watcher" , "Managed" .)

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

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