Fight which ends in custody for someone (3-2-4)
I believe the answer is:
tug-of-love
'fight which ends in custody for someone' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'fight which ends in custody for someone' is the wordplay.
I cannot quite understand how this works, but
'fight' could be 'tug' (tugging is a kind of fighting) and 'tug' is found in the answer.
'someone' could be 'love' (love is a kind of someone) and 'love' is present in the answer.
The remaining letters 'of' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for tug-of-love that I've seen before include "Phrase for dispute over custody of a child" , "Conflict over the custody of a child" .)