Related Clues:

• Private eyes, for short
• Shadows, briefly
• Holmes and Chan, e.g.
• Sleuths, slangily
• Detectives
• Shadows
• 23 Across et al.
• PI's
• Nancy Drew and Encyclopedia Brown, e.g.
• Film-noir heroes
• Sleuths, for short
• Pulp heroes, often
• Case workers, briefly
• Hammer or Spade types
• Spade et al., briefly