America backing Europeans and East Africans (8)
I believe the answer is:
sudanese
'africans' is the definition.
(people from Sudan)
'america backing europeans and east' is the wordplay.
'america' becomes 'US' (United States).
'backing' is a reversal indicator.
'europeans' becomes 'danes' (Danish people).
'and' means one lot of letters go next to another.
'east' becomes 'e' (abbreviation).
'us' back-to-front is 'su'.
'su'+'danes'+'e'='SUDANESE'
(Other definitions for sudanese that I've seen before include "Native to northeastern African state" , "From Khartoum, perhaps" , "African inhabitants" , "Bad danseuse from a northeastern African state" , "Of Khartoum, say" .)