Related Clues:

• Strait-laced
• Straitlaced and then some
• Like a nice Nelly
• Prim and proper
• Straight-laced and then some
• Overly prim and proper
• Priggish
• Fastidious to a fault
• Proper and then some
• Proper to a fault
• Puritanical
• Overly proper
• Blue-nosed
• Finicky
• Too punctilious