Woman say in South Africa (6)
I believe the answer is:
stella
'woman' is the definition.
'say in south africa' is the wordplay.
'say' becomes 'tell' (synonyms).
'in' is an insertion indicator.
'south africa' becomes 'SA' (abbreviation).
'tell' placed inside 'sa' is 'STELLA'.
(Other definitions for stella that I've seen before include "- Gibbons (Cold Comfort Farm)" , "lady?" , "____ McCartney, fashion designer" , "woman" , "Swift favourite" .)