African chap has new attempt (7)

I believe the answer is:

angolan

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'african' is the definition.
(Angolan is an example)

'chap has new attempt' is the wordplay.
'chap' becomes 'Alan' (man's name).
'has' is an insertion indicator.
'new attempt' becomes 'ngo' (I can't explain this - if you can you should believe this answer much more).
'alan' placed around 'ngo' is 'ANGOLAN'.

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(Other definitions for angolan that I've seen before include "from Africa" , "One from Luanda" , "Coming from a southwest African country" , "Eg, native of Luanda" .)

I've seen this clue in The Daily Express.

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