Money that's not in bonds? (5,4)

'bonds?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'money that's not' is the wordplay.
I cannot quite see how this works, but
'money' could be 'cash' (cash is a type of money) and 'cash' is found in the answer.
'not' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
The remaining letters 'lose' 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).

'in' acts as a link.

Can you help me to learn more?