Related Clues:

• Urban districts
• Thinks about nothing, with 'out'
• High school math calculations
• Carpet calculations
• Composition of many sports courts
• Hospital wings
• Areas with particular characteristics
• Defined regions or areas
• 'Areas subject to restrictions, speed limits say (5)'
• Is and is as they may be in space
• Is and is like them for space
• Is and is as the spaces
• Is an is as wide as they?
• Is and is as a matter of space
• Bit them