Your unworthy conclusion (3)

I believe the answer is:

thy

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'your' is the definition.
('thy' historically meant 'your')

'unworthy conclusion' is the wordplay.
'THY' is hidden within the letters.
But, I am uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for thy that I've seen before include "Your (archaic)" , "Your, of old" , "Belonging to thee" .)

I've seen this clue in the Evening Standard.

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