Related Clues:

• Swing support, perhaps
• An arm and a leg
• Life partner?
• Arm, e.g.
• Wing, perhaps
• Precarious spot, figuratively
• Military division
• Nest's resting place
• An arm and a leg?
• Trunk attachment
• An arm or a leg
• It could be the main branch
• Tire swing supporter
• 'Saw' prop
• Big twig