Selection.ClearParagraphDirectFormatting (Word)
Removes paragraph formatting that has been applied manually (using the buttons on the ribbon or through the dialog boxes) from the selected text.
This method does not remove paragraph formatting that has been applied by using a paragraph style. To remove paragraph formatting that the user has applied by using paragraph styles, use the ClearParagraphStyle method. To remove all paragraph formatting, both style and manual formatting, use the ClearParagraphAllFormatting method.
Selection.ClearParagraphDirectFormatting