Related Clues:

• Most wound up
• Stretched to the limit
• Least relaxed
• Least loose
• Most uptight
• Most volatile
• Most edgy
• Most likely to crack
• Most rigid or starched
• Most tightly stretched
• Having the least give
• Most difficult singular argument is in French
• Ill-fitting set sent tight as can be
• Most up-tight
• Most strained