Rookie (Var.)
Else clues• Amateur, variantly
• Beginner (var.)
• Beginner of a riot
• Cicero's famous scribe
• Cicero's servant and secretary
• Greenhorn
• Greenhorn (var.)
• Neophyte
• Neophyte, variantly
• Neophyte: Var.
• Neophyte: var. sp.
• Newbie: Var.
• Newcomer: var.
• Novice
• Novice (var.)
• Rank beginner (var.)
• Riot beginner
• Rookie
• Someone new to a field or activity