Flag raised near reformed South Africans (9)

'africans' is the definition.
(Eritrean is an example)

'flag raised near reformed south' is the wordplay.
'flag' becomes 'tire' (both can mean to become weary).
'raised' shows that the letters should be reversed in order (going up in a down clue).
'reformed' indicates anagramming the letters.
'south' becomes 's' (abbreviation).
'tire' in reverse letter order is 'erit'.
'near' anagrammed gives 'rean'.
'erit'+'rean'+'s'='ERITREANS'