Girl, English and thin, followed by men (7)
I believe the answer is:
eleanor
'girl' is the definition.
'english and thin followed by men' is the wordplay.
'english' becomes 'e' (abbreviation).
'and' is a charade indicator (letters next to each other).
'thin' becomes 'lean' ('lean' is associated in meaning with 'thin').
'followed by' means one lot of letters go next to another.
'men' becomes 'or' (I've seen this in other clues).
'e'+'lean'+'or'='ELEANOR'
(Other definitions for eleanor that I've seen before include "English queen" , "A reel by Ringo (anag) -- Beatles song" , "Real one (anag) - girl's name" , "-- Bron, actress" , "Edward the First's queen" .)