Wasted daughter in prison? (8)
I believe the answer is:
misspent
'wasted' is the definition.
(I've seen this before)
'daughter in prison?' is the wordplay.
'daughter' becomes 'miss' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in prison?' becomes 'pent' ('pent' can mean 'confined').
'miss'+'pent'='MISSPENT'
Can you help me to learn more?
(Other definitions for misspent that I've seen before include "Squandered" , "youth? Sort of" , "Wasted (as youth)" , "having used money unwisely" , "Passed the time unwisely, as a youth perhaps" .)