Possible Clues:

• Jerk starting trouble is capable of casting a spell over someone
• Move spasmodically
• Will she spell it out after tea, jerkily?
• One may be nervous beginning to tackle weird sister
• Nervous action
• Spasmodic jerk
• Uncontrolled, short, jerky motion
• Fool attending church, the jerk!
• Pang; small noose
• Quiver or contract spasmodically, as eye may