Study in university, talented beyond question (10)

I believe the answer is:

undeniable

'beyond question' is the definition.
(that which cannot be denied or questioned)

'study in university talented' is the wordplay.
'study' becomes 'den' (term for a study or office).
'in' indicates putting letters inside.
'university' becomes 'uni' (short for university).
'talented' becomes 'able' (both can mean skilled).
'den' going inside 'uni' is 'undeni'.
'undeni'+'able'='UNDENIABLE'

(Another definition for undeniable that I've seen is " Indisputable".)

I've seen this clue in The Telegraph.

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