Possible Clues:

• What Obama used to sign legislation
• Sinister worker kept in the dark by top assistant?
• Presumably isn't right for many writers carrying union symbol
• Ring finger's place
• It's not the right way to get to grips with it
• It's not right to get to grips with it
• You've no right to come to grips with this
• Ravel wrote a piano concerto for it