Related Clues:

• Exists on oxygen at pub ¿ that¿s the pressure living in this climate
• A biro's taken out to produce curve on map
• One thus secure in meteorologist's line
• Map pressure line
• One thus secure in the meteorologist's line
• One's going to pub around the Circle Line
• (Map) line of constant pressure
• One's going to court around Circle Line
• What's shown on some maps is pub - inscribed circle
• Showing pressure or bias is out of order
• I therefore stick line on the map
• (Map) line of constant atmospheric pressure
• I climb, covering black line on map
• Map line of constant pressure
• On a run, I cry - I show the pressure