You only need to enter a description if you entered an 'other subtraction' on your SC tax return. Did you enter a subtraction? If so, which one? If not, you can leave the field blank.
See page 20 of the instructions for a list of 'other SC subtractions'.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"