Related Clues:

• In need of a massage
• Bad-tempered
• Knotted up
• Brace, in a way
• Present, e.g.
• It can be past or present
• On tenterhooks
• Drawn tight
• All wound up
• Ex-lax?
• Lacking play
• Tightly stretched
• Grammarian's concern
• Out of sorts
• Stiffen