Related Clues:

• All eyes and ears
• Fully engrossed
• Riveted with attention
• Glued to the tube, say
• Held firmly
• Like one diffusing a bomb
• Spellbound, enthralled
• Purpose under canvas
• Enthralled, captivated
• Concentrating on a particular purpose
• Purpose, design
• Determined, resolved
• Absorbed and enchanted
• Aim, purpose
• Determined or resolved