The overseer's poetic part (5)

I believe the answer is:

verse

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'the' is the definition.
I can't tell whether this definition defines the answer.

'overseer's poetic part' is the wordplay.
'part' says the answer is hidden in the clue.
'VERSE' is hidden within 'overseers poetic'.

Can you help me to learn more?

(Other definitions for verse that I've seen before include "Stanza; poetry" , "Poetry, a poem" , "Part of hymn" , "Poems" , "Section of a poem" .)

I've seen this clue in the Evening Standard.

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