Technology adopted by one born in retreat somewhere in Kenya (7)
I believe the answer is:
nairobi
'somewhere in kenya' is the definition.
(I know that Nairobi capital of Kenya)
'technology adopted by one born in retreat' is the wordplay.
'technology' becomes 'AI' (AI is an example).
'adopted by' is an insertion indicator (I've seen this in other clues).
'one' becomes 'i' (Roman numeral).
'in retreat' says the letters should be written backwards.
'i'+'born'='iborn'
'iborn' backwards is 'nrobi'.
'ai' placed into 'nrobi' is 'NAIROBI'.
(Other definitions for nairobi that I've seen before include "Badly-behaved child" , "African city" , "Robinia strangely found in Kenya" , "Kenyan city" , "I, a robin (anag) - city" .)