Intercept settlement

This is really unclear. I am assuming - but I may be wrong - that the other parent received money in a legal settlement in another case and you are inquiring as to whether the court can order that he be required to give you a portion of that settlement to pay child support arrears.  Assuming that this is all correct, then yes the court can order that.  You can also get a writ of attachment and levy his bank accounts if you know where he deposited the funds.  I would suggest consulting with a family law attorney in your area.