Related Clues:

• Protect the quarterback
• Lego unit
• Tackle partner
• One of a set for toddlers
• See 5 Down
• Cube
• Partner of tackle
• The 2x2 black square near the middle of this puzzle's grid, e.g., which is part of eight answers
• "Old" chip producer?
• See 20
• See 4
• See 7
• See 29
• Check plug
• Obstruction in built-up area