Pointless biography revealing intimate details (4,4)
I believe the answer is:
love life
'intimate details' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'pointless biography' is the wordplay.
'pointless' becomes 'love' (I can't justify this - if you can you should believe this answer much more).
'biography' becomes 'life' (synonyms).
'love'+'life'='LOVE LIFE'
'revealing' acts as a link.
Can you help me to learn more?
(Other definitions for love life that I've seen before include "Romantic activity?" , "Sex" , "Amorous experiences" .)