Related Clues:

• Although it's old money, it may give the illusion of being worthwhile
• That used to be worth something, but it's just an illusion
• It makes Father sour to come back around in a 8 down sort of way, in short
• This will give one the wrong idea that it's still worth anything
• 21 across makes such a detective matter quite poisonous
• That might give one the illusion of old money
• Not a sweet detective matter
• That gives one the illusion that it used to be worth something
• That gives one the illusion of former currency
• There's nothing base about a century I had
• The hundred I had makes it a biting, detective matter
• So corrosive that it's a matter for the detectives
• Money used to be a drug on the market
• What a drug money used to be!
• Nowadays its worth may be only hallucinatory