Related Clues:

• 90-degree letters
• 90-degree building extensions
• Chicago commuter carriers
• Some city lines
• Rectangle halves
• South African links man
• Pillow's center
• Trains up above
• Old English lengths
• Old lengths
• Old measures of length to sell
• Angular distances above the horizon
• Extensions at right angles to the main building
• At length it's 'ot
• At length, as of old, it's 'ot