What’s shown by drunken noisy English Brit? (10)

I believe the answer is:

insobriety

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'what's shown' is the definition.
I can't judge whether this defines the answer.

'drunken noisy english brit?' is the wordplay.
'drunken' indicates an anagram.
'english' becomes 'E' (abbreviation).
'noisy'+'e'+'brit'='noisyebrit'
'noisyebrit' is an anagram of 'INSOBRIETY'.

'by' is the link.

Can you help me to learn more?

(Other definitions for insobriety that I've seen before include "drunk" , "Drunkenness" .)

I've seen this clue in The Times.

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