Related Clues:

• First to give present, one wrapped in a sheet?
• Spirited account of grand entertainer on the level in US
• Scottish battlefield's rumoured to have a ghost
• After midnight, landlord produces spirit
• Spirit with which one's consumed by rage
• Illusion (at the opera?)
• Visible manifestation of a dead person
• White Halloween costume
• Bacall's love, informally
• Behind-the-scenes writer
• Casper, for one
• It may appear one is in anger
• Good party organiser, one whose work is bound to be misattributed
• Casper, famously
• Any of four that chase Pac-Man