Related Clues:

• All keyed up
• Having the jitters, perhaps
• Tightly wound
• Anxiously impatient
• Like some performance art
• About to snap
• Pushing the envelope
• Like a bundle of nerves
• Innovative and daring
• Out there, in pop culture
• Unable to relax
• Nervous as a cat
• Controversial
• Not at all serene
• Pacing, perhaps