Possible Clues:

• Bank holiday, Spain -- the plane's heaving; it's difficult to move
• Impractical, expensive belonging or project
• More trouble than it's worth
• Possession that proves expensive to keep and difficult to get rid of
• Item exchanged in a so-called 'yankee swap'
• Help athlete win when running, avoiding one learner's impediment
• It's more trouble than it's worth, chess player found before big game
• Wheel patient being treated outside hospital -- a useless and expensive thing
• Although receiving support, hard to wear long unwanted item
• Worthless asset