Possible Clues:

• Rear Southdown sheep, initially native to good ground in some American states
• Patriots' home
• White variety of this puzzle's circles
• Boy about to wangle change of name for six states
• In indefinite number, sheep finding no good ground here?
• More than one state points to liver perhaps containing cyst
• Part of USA that could suit DA Glenn?
• NE USA
• Collection of six American states and glen, clued cryptically?
• North-east part of the United States