She robbed her sleeping partner of his capital assets (7)
I believe the answer is:
delilah
'she' is the definition.
'robbed her sleeping partner of his capital assets' is the wordplay.
I cannot really see how this works, but
'her' could be 'delila' and 'delila' is found within the answer.
A single letter 'h' remains which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for delilah that I've seen before include "Tom Jones song" , "tempting girl" , "Biblical character" , "Woman linked to Samson" , "Dangerous temptress - Samson's girlfriend" .)