Bravo — Noah guards this river (4)

I believe the answer is:

avon

'this river' is the definition.
(I know that Avon is a river)

'bravo noah guards' is the wordplay.
'guards' indicates the answer is hidden within the clue.
'AVON' is hidden in the letters of 'bravo noah'.

(Other definitions for avon that I've seen before include "River and former county" , "Name of several English rivers" , "English river, flows through Stratford" , "River at Shakespeare's Warwickshire birthplace" , "English river flowing through Stratford" .)

I've seen this clue in The Times.

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