German article with information on sex (6)
I believe the answer is:
gender
'sex' is the definition.
(I know that sex can be written as gender)
'german article with information' is the wordplay.
'german article' becomes 'der' (definite article in German).
'with' is a charade indicator (letters next to each other).
'information' becomes 'gen' (gen can informally mean information).
'der' put after 'gen' is 'GENDER'.
'on' acts as a link.
(Other definitions for gender that I've seen before include "What divides males and females" , "Sexual status" , "Sex category" , "Man or woman" , "Class such as female or male" .)