Mo. Rev. Stat. § 473.573: Creditor may have execution, when.

If an executor or administrator fails to pay any claim ordered to be paid, in accordance with an order under section 473.570 when demanded, the clerk of the court, on application of the creditor, and being satisfied that the demand has been made, shall issue execution for the amount ordered to be paid, and costs, against the property, goods and chattels and real estate of the executor or administrator.