Look displeased about English and French capital in Africa (8)
I believe the answer is:
freetown
'capital in africa' is the definition.
(capital of Sierra Leone)
'look displeased about english and french' is the wordplay.
'look displeased' becomes 'frown' (I've seen this in another clue).
'about' indicates putting letters inside.
'english' becomes 'e' (abbreviation).
'and french' becomes 'et' ('and' in French).
'e'+'et'='eet'
'frown' placed around 'eet' is 'FREETOWN'.
(Other definitions for freetown that I've seen before include "Sierra Leone's capital" , "Capital of Sierra Leone" , "African city" , "capital city" .)