Related Clues:

• One with no idea
• Innocent soul
• Newcomer
• Dewy-eyed one
• First-timer
• Inexperienced person
• Beginner, in slang
• Tyro, and a hint to this puzzle's theme
• One starting out
• Innocent person
• Childlike person
• Cyber-beginner
• Bush leaguer
• Person who needs to RTFM, perhaps
• Noob