Possible Clues:

• It's to do with interest in holding cash for informer on ecstasy
• Bill gets discounted at this
• Level of interest? (2 words)
• Mortgage lender's stat
• Mortgage shopper's concern
• It's to do with interest in holding money for informer on ecstasy
• Speed in place of money?
• Percentage interest on a C.D., e.g.