Possible Clues:

• Stiffness of manner with which celebrity is given national award
• Important person wants church to be formal
• Would that make a big stiff of one that makes a heavenly beginning
• Jack's enrolled in school as formality
• Carbohydrate in rice, potatoes
• Stiffness of manner
• Formality found in celebrity church
• Stiffener in the laundry
• That won't make one limp.
• Carbohydrate from plants