For a colourful finish, maybe I want pork (9)

I believe the answer is:

paintwork

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'for a colourful finish' is the definition.
I know nothing about this answer so I can't judge whether this works.

'maybe i want pork' is the wordplay.
'maybe' is an anagram indicator.
'i'+'want'+'pork'='iwantpork'
'iwantpork' with letters rearranged gives 'PAINTWORK'.

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(Other definitions for paintwork that I've seen before include "Coats maybe" , "matt and gloss?" , "Decoration" .)

I've seen this clue in the Evening Standard.

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