Possible Clues:

• It may go up in an airplane
• Hand support for what 9 across might do about the millenium
• Check about starting to mend part of chair
• Where to place elbow - or gun
• Chair side support
• Many stay around to provide support for member
• Auto interior feature
• Part of a carver chair
• Stop keeping minutes in support of chairperson?
• Separator of airplane seats