A guy from Marka, Amos, following the Italian back (6)
I believe the answer is:
somali
'a guy from marka' is the definition.
I can't judge whether this definition defines the answer.
'amos following the italian back' is the wordplay.
'following' says to put letters next to each other.
'the italian' becomes 'il' ('the' in Italian).
'back' says the letters should be written in reverse.
'amos' put after 'il' is 'ilamos'.
'ilamos' written backwards gives 'SOMALI'.
Can you help me to learn more?
(Other definitions for somali that I've seen before include "native language" , "1 [GCSE]" , "Native of East African state" , "So Liam could be a man from NE Africa" , "From a country in the Horn of Africa" .)