Related Clues:

• Having the jitters, perhaps
• Feeling restless
• Feeling troubled
• Itching
• Tightly wound
• Like a cat on a hot tin roof
• Tied up in knots
• It can be past or present, in grammar
• Prone to fidgeting
• Verb form
• Anxiously impatient
• Grammar concern
• Like some performance art
• Nervously impatient
• Far from laid-back