[Austin W Hogan]

Wiping the stock down with a soft rag and mineral spirits or turpentine may get rid of some of the wax and make the clean up easier. Use the paste version of Murphy's, and rub it around with your finger. If you can't get the paste use the liquid sparingly; it's half water. If solid finish remains beneath the grime you will probably need to clean the surface with mineral spirits to make the new finish stick.
If 80 or 90 % 0f the old finish remains, it is sometimes possible to redistribute it with a little alchohol on a rag wrapped around your finger. Don't try this without some practice.
If you do refinish with French Polish and it appears too glossy, it can be rubbed out with a little white mineral oil and rottenstone.

Best, Austin