Asian capital (3,5)
There are a few possibilities for this:
new delhi
'asian capital' is the definition.
(capital of South Korea)
This is all the clue.
(Other definitions for seoul that I've seen before include "19 [EASTERN] capital" , "South Korean capital" , "Capital city" , "Olympic venue" , "Asian capital" .)
'asian capital' is the definition.
(capital of Afghanistan)
This is all the clue.
(Other definitions for kabul that I've seen before include "Afghan capital" , "Afghan city" , "city abroad" , "Move through water" , "Capital city of Afghanistan" .)
'asian capital' is the definition.
(capital of India)
This is all the clue.
(Other definitions for new delhi that I've seen before include "'Indian capital (3,5)'" , "Asian capital city" , "End while in India, oddly" , "Lutyens' design" , "big city" .)