Related Clues:

• Press oils as examples
• Old Asian region's means of communication
• Communication means some diagrams must be cropped
• Eg, newspapers, TV
• Those in circus seeing assistant's backflip on to magician's head
• Oil etc found in region near Caspian Sea
• Mass communicators
• Male assistant sent back for oil and water, maybe
• First man with new idea for means of communication
• Reporters getting note out of Saudi holy city
• Vehicles engineer made, I imported
• News channels
• Male assistant brought back the box etc
• Middle East needing assistance over reporting channels
• Agencies giving this writer help after setback