Unfortunate in gown before court, making confession (6,2)

I believe the answer is:

owning up

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'confession' is the definition.
(thesaurus)

'unfortunate in gown before court' is the wordplay.
'unfortunate' indicates anagramming the letters.
'before' means one lot of letters go next to another.
'court' becomes 'up' (I am not sure about this - if you are sure you should believe this answer much more).
'in'+'gown'='ingown'
'ingown' anagrammed gives 'owning'.
'owning'+'up'='OWNING UP'

'making' is the link.

Can you help me to learn more?

(Another definition for owning up that I've seen is " Admitting".)

I've seen this clue in The Guardian.

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