Related Clues:

• Boss's okays, often
• Legislates
• Puts into force
• Signs into law
• Makes into 51-Across
• First letters as of names
• First letters of names
• Passes formally into law
• Establishes by law
• They come first, though they're in it first
• The first letters to get eleven mixed up in salt
• They're the first to come in it at the start
• They're the first to come last in 11
• They come first by way of letters
• In it to start with but all at the start