Related Clues:

• -- and don'ts
• Subject of the first book 'for Dummies'
• Coiffures, informally
• Two, in Mexico
• MS ____
• Windows ancestor
• One less than ''tres''
• 27-Across, e.g.
• Un cuarto of 62-Across
• Recommended actions
• MS _____
• Double 10-Down
• Accepted behavior
• The cube root of ocho
• Buns and bobs