Related Clues:

• Guard given sly look when turning up
• Note that's no longer legal currency in Europe
• What teachers do for money no longer
• Hold the fort?
• Preserve part of castle
• The second Gospel
• Messier, for one
• Use a crafty throw — and, lo, siskin and tit now bleed
• Note it's old currency
• 'The ___ of Zorro'
• Old German currency
• Dispatch bag?
• Second of the four Gospel writers
• Gordie's other hockey-playing son
• Maintain part of a castle