Shakespeare role, sweet one, seized by returning star (8)

I believe the answer is:

polonius

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'shakespeare role' is the definition.
The definition suggests a singular noun which matches the answer.

'sweet one seized by returning star' is the wordplay.
'sweet' becomes 'polo' (I've seen this before).
'one' becomes 'i' (Roman numeral).
'seized by' is an insertion indicator.
'returning' says the letters should be written backwards.
'star' becomes 'sun' (the Sun is a star).
'sun' reversed gives 'nus'.
'i' inserted within 'nus' is 'nius'.
'polo'+'nius'='POLONIUS'

Can you help me to learn more?

(Other definitions for polonius that I've seen before include "Father of Ophelia (Hamlet)" , "Ophelia's father (Hamlet)" , "Character in Hamlet" .)

I've seen this clue in The Telegraph.

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