Kind of good in African republic (6)
I believe the answer is:
benign
'kind' is the definition.
(similar in meaning)
'good in african republic' is the wordplay.
'good' becomes 'g' (abbreviation).
'in' indicates putting letters inside.
'african republic' becomes 'Benin' (country in Africa).
'g' placed inside 'benin' is 'BENIGN'.
'of' is the link.
(Other definitions for benign that I've seen before include "Harmless or kind" , "Kindly; not harmful" , "Salubrious" , "Mild and gentle, not malignant" , "Medically curable" .)