Person welcoming English in Asian capital (5)
I believe the answer is:
seoul
'asian capital' is the definition.
(capital of South Korea)
'person welcoming english' is the wordplay.
'person' becomes 'soul' (synonyms).
'welcoming' means one lot of letters goes inside another (in sense of 'inviting in').
'english' becomes 'e' (abbreviation).
'soul' placed around 'e' is 'SEOUL'.
'in' acts as a link.
(Other definitions for seoul that I've seen before include "19 [EASTERN] capital" , "South Korean capital" , "Olympic venue" , "Capital city" , "South Korea capital" .)