Possible Clues:

• No nurse treated someone refusing drugs
• Denial nurse treated person refusing drugs?
• New nurse keeps working to get one off drugs
• New burden placed on monarch who keeps off the grass
• Failure to exercise a right by nurse on shift
• One runs fantastically -- one not taking drugs
• Informer right about Greek character's legal omission
• Being drug-free, one avoids exploitation
• He's clean
• One failing to exploit old Emperor's brief, without responsibility