Related Clues:

• That'll give one the illusion of old money
• So biting as to be a detective matter
• A biting matter for the detectives
• Biting a branch of police
• Used to be worth something, but now is a drug on the market
• Old money is now a drug on the market
• That will give the illusion of old currency
• Will this give one the illusion of old money?
• May be 17 across in a detective sort of way
• The drug that used to be worth something
• 'Used to be of sterling worth, now a drug on the market (3)'
• A drug on the market as money used to be
• It used to be worth having a drug
• Old money and hallucinogenic drug
• Litmus test result