Related Clues:

• Map aid
• Making sure you have all the parts, e.g.
• Start of a plan
• Crossword diagram, e.g.
• Part of a control tower screen
• Crosshatch design
• First thing to do
• How-to book's starting point
• What you're filling in
• Starting instruction
• Sudoku feature
• Instruction sheet start
• Sudoku component
• Graph paper pattern
• Graph-paper design