Romantic GP possibly wanting Eastern girl (6)
I believe the answer is:
dreamy
'romantic' is the definition.
(thesaurus)
'gp possibly wanting eastern girl' is the wordplay.
'gp possibly' becomes 'dr' (gp is a kind of Dr).
'wanting' says to put letters next to each other.
'eastern' becomes 'e'.
'girl' becomes 'amy'.
'dr'+'e'+'amy'='DREAMY'
(Other definitions for dreamy that I've seen before include "Gorgeous (informal)" , "Lovely" , "wonderful" , "romantic" , "Fantastic" .)