Related Clues:

• Isolated from others
• 'Home ___,' Macaulay Culkin movie
• Without aid
• Apart from others
• ''... on the ___ prairie''
• Admiral Byrd memoir
• Lacking a partner
• One-of-a-kind
• Reclusive
• Singularly
• See 21 Across
• Wolf type
• Partnerless
• The __ Ranger (Tonto's pal)
• See 19 Across