Possible Clues:

• People claiming to be able to get rid of spooks
• Grand entertainers including penniless royal -- they may knock back spirits
• 1984 Bill Murray comedy film
• They finish off the spirits for that lot wrapping up the presents, so to speak
• Supernatural comedy of 1984
• 1984 film co-written and co-starring 59-Across
• 1984 film starring Bill Murray, Dan Aykroyd, and Sigourney Weaver
• Apparition connected to that damn lot from the war we hear ¿ they think they can break your spirits?
• Movie good guys responsible for the circled squares in eight long puzzle answers
• 1984 cinematic slimefest