Friendly con-artists abandoning female - they will cause trouble (9)

'friendly con-artists abandoning female they' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'cause trouble' is the wordplay.
I cannot really understand how this works, but
'cause' could be 'maker' (maker is a kind of cause) and 'maker' is found within the answer.
The remaining letters 'wars' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'will' is the link.

Can you help me to learn more?