African opens shop offering mutton and lamb ingredients (6)
I believe the answer is:
somali
'african' is the definition.
(I know that Somalian is a type of African)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for somali that I've seen before include "So Liam could be a man from NE Africa" , "North-east African" , "Eg, native of Mogadishu" , "1 [GCSE]" , "Native of East African state" .)