Possible Clues:

• French aristocrat occupied with old coin
• In pipe, a coin, once
• Movie pass, slangily
• Vessel contains a gold coin from the past
• Old coin and key dropped in tube
• Gold coin, second of many found in Channel
• Article in pipeline bringing money to Shylock
• Coin a word that means teach without peripheral notes
• Old money initially accepted in Tube
• Old coin, article blocking pipe?