Related Clues:

• It's a turning point taking valet off laxatives
• Something to revolve around
• Plot line in a math book
• No part of this straight or flat
• Something to revolve around a half-dozen turns
• x or y, in math class
• Line through two poles
• Cab’s losing time as something running through wheel
• Revolution constant
• Son supporting a team's combined powers
• A big shot at Old Trafford backs alliance
• Figure advanced northward, getting the Central Line
• x- or y- line
• y-___ (vertical line on a graph)
• X- or y-, on a chart