Drug English star (7)
I believe the answer is:
heroine
'star' is the definition.
(thesaurus)
'drug english' is the wordplay.
'drug' becomes 'heroin' (heroin is a kind of drug).
'english' becomes 'e' (abbreviation).
'heroin'+'e'='HEROINE'
(Other definitions for heroine that I've seen before include "Emma, for example" , "Brave female" , "Perhaps Tess" , "Woman of courageous achievements" , "Chief female character in a book" .)