Girl (4)
'girl' is the definition.
(lass can informally mean a girl)
This is all the clue.
(Other definitions for lass that I've seen before include "Sweet resident of Richmond Hill?" , "Scottish girl" , "Damsel" , "Sweetheart" , "Miss" .)
'girl' is the definition.
(I know that maiden is a type of girl)
This is all the clue.
(Other definitions for maiden that I've seen before include "Dotty over" , "Earliest - unmarried" , "Miss" , "Girl; kind of over" , "Unmated; runless over" .)
'girl' is the definition.
(lassie can informally mean a girl)
This is all the clue.
(Other definitions for lassie that I've seen before include "dog in pictures" , "Screen mutt - Scottish girl" , "Scottish girl - canine movie star" , "Cinema dog who went home" , "Collie featuring in many films" .)
'girl' is the definition.
('her' refers to a girl or woman)
This is all the clue.
(Other definitions for her that I've seen before include "Belonging to the woman" , "She, objectively" , "The female's" , "Belonging to a female" , "The woman's" .)
'girl' is the definition.
(I know that gal is a type of girl)
This is all the clue.
(Other definitions for gal that I've seen before include "female noted in Kalamazoo" , "Broad" , "Young woman (colloq.)" , "measure of acceleration?" , "Lass" .)