Brave Pole’s broadcast that can be shown (9)

I believe the answer is:

proveable

'that can be shown' is the definition.

'brave pole's broadcast' is the wordplay.
'broadcast' indicates an anagram.
'brave'+'pole'='bravepole'
'bravepole' is an anagram of 'PROVEABLE'.

I've seen this clue in The Times.

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