Acts belligerently to keep split appearance money abroad (5,3,7)

'acts belligerently' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'keep split appearance money abroad' is the wordplay.
I cannot really see how this works, but
'keep' could be 'fort' (I've seen this in other clues) and 'fort' is found in the answer.
'appearance' could be 'looks' (I've seen this before) and 'looks' is present in the answer.
'money' could be 'rouble' (I've seen this before) and 'rouble' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

'to' is the link.

Can you help me to learn more?