Daughter in torment at last finds means (4)
I believe the answer is:
dint
'means' is the definition.
(dint is a kind of means)
'daughter in torment at last' is the wordplay.
'daughter' becomes 'd'.
'at last' suggests the final letters.
The final letter of 'torment' is 't'.
'd'+'in'+'t'='DINT'
'finds' acts as a link.
(Other definitions for dint that I've seen before include "(By) means (of)" , "Impression or hollow in a surface" , "Force" .)