Frolic about outside a South African village (5)
I believe the answer is:
kraal
'south african village' is the definition.
(I've seen this before)
'frolic about outside a' is the wordplay.
'frolic' becomes 'lark' ('lark' can be a synonym of 'frolic'**).
'about' shows that the letters should be reversed in order.
'outside' indicates putting letters inside.
'lark' in reverse letter order is 'kral'.
'kral' going around 'a' is 'KRAAL'.
(Other definitions for kraal that I've seen before include "village in Africa" , "South African village" , "African hut-village" , "village community" , "Corral" .)