Ban that hard-hearted socialite girl! (5)
I believe the answer is:
debar
'ban that hard-hearted socialite girl' is the definition.
'debar' can be an answer for 'ban' (I've seen this before). I'm not certain of the rest of the definition.
'ban that hard-hearted socialite girl' is the wordplay.
I cannot quite understand how this works, but
'ban' could be 'bar' (I've seen this before) and 'bar' is located in the answer.
'girl' could be 'de' and 'de' is present in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for debar that I've seen before include "Refuse to admit" , "Exclude from a place" , "Exclude (from right)" , "Exclude (from doing something)" , "Prohibit (from doing something)" .)