Inborn, not learned (6)
I believe the answer is:
innate
I believe this clue is a double definition.
'inborn' is the first definition.
(I know that inborn can be written as innate)
'not learned' is the second definition.
(I know this)
(Other definitions for innate that I've seen before include "'Inborn, not learned (6)'" , "Inborn in neat way" , "not needing to be taught" , "Inherent or inborn" , "instinctive ..." .)