Related Clues:

• Like starched collars
• With 10-Down and "and," rigidly formal
• Not flexible, as muscles
• Highly proper
• Lucky one?
• Proper partner?
• Prim
• Potent, as a potable
• Like legumes
• Extremely proper
• Far from freewheeling
• Formal and proper
• Straitlaced and proper
• Proper or prissy
• Affectedly dainty or refined