Attractive girl left twice after party (4)
I believe the answer is:
doll
'attractive girl' is the definition.
'left twice after party' is the wordplay.
'left' becomes 'l' (common abbreviation).
'twice' shows that letters should be duplicated.
'after' is a charade indicator (letters next to each other).
'party' becomes 'do' (do is a kind of party).
'l' doubled is 'll'.
'll' after 'do' is 'DOLL'.
(Other definitions for doll that I've seen before include "Puppet" , "Play figure" , "Figurine" , "Child's toy figure" , "A girl's plaything" .)