Related Clues:

• (K) Backward SON?
• Negatives
• 5 & 10, for ex.
• Us (Sp.)
• Calculator figs.
• Sudoku fill: abbr.
• Crossword diag. markers
• Directory data: Abbr.
• They start many park signs
• Crunched things: Abbr.
• RBI and ERA
• Statistics: Abbr.
• Thumbs-downs
• P.O. boxes, e.g.
• Column of boxes on a questionnaire