Possible Clues:

• Heath needs space to retreat
• Space gone over in open land
• Upland tract
• African of mixed Arab and Berber descent
• Tract of open upland
• Landscape that's part of a house spelled backward
• Low bar ultimately fell
• River at the bottom of low uncultivated land
• Newcastle’s Town ____ is a large common
• Use docking facility in space, moving backwards