Related Clues:

• C-3PO, e.g
• 9-Across, e.g., informally
• Web crawler
• Program that performs repetitive tasks
• Sci-fi figure
• Automaton, for short
• Automated Web assistant
• High-tech helper, briefly
• C-3PO, for one
• Plant sci.
• Android, for short
• Mechanical combatant, for short
• R2-D2 or C-3P0, e.g.
• R2-D2, notably
• Droid