I ain't afraid

Fictional confection with the slogan "Stays Puft, Even When Toasted" (initials)

When your buddy affirms to an interdimensional being that he is a god, might as well say this

Aykryod would go on to ___ 2 Down as Mr. Grocer

Drilling a deep hole, to a Carpathian?

"How many ghosts have you caught, Dr. Venkman?" "I'm ___ liberty to say."

Ectoplasmic residue

Not to be crossed

"Grosse ___ Blank"

Day of week for October 28, 1929, when Ivo Shandor is executed (abbr.)

Library ghost would likely stack books by Dewey decimals, rather than by these bar codable numbers

A proton pack e.g. (just add "talent")

Ghost Cuban patriot Jose