Related Clues:

• Use it for good measure
• Has the measure of most things in the castle
• Tire-pressure indicator
• Rail track width
• One for drawing lines
• King, one regretting touring Loch
• A straight-edge
• Graduated straight-edge
• Thoroughly straight person holding sway?
• Sound fruit's standard size
• Peggy --- (Buddy Holly)
• Judge's month in the middle of Bridgetown
• Eg, king, emperor
• Gregory Isaacs is cool one
• Drawing aid