Women (6)
'women' is the definition.
(lady is a kind of woman)
This is all the clue.
(Other definitions for ladies that I've seen before include "...... and gentlemen" , "Ideals for gentlewomen" , "Lords' wives" , "Well-mannered women" , "Public facility" .)
'women' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for fair sex that I've seen before include "Womankind (often patronising)" , "Women generally, not just blondes" , "Complimentary description of women" , "Women in general - especially blondes?" .)