Related Clues:

• Gist of a Dear John letter
• ''We're done here''
• Line used when wrapping?
• Final film caption
• 'This relationship can't go on'
• With 39-Across, doomsayer's assertion ... or a phonetic hint to 18-, 24-, 51- and 61-Across
• Discussion-ending comment
• Orbison ballad that opens with "Your baby doesn't love you anymore"
• Nothing further to say, it is what it is?
• Last page phrase
• 'Well, that's that!'
• Song by the Doors that, paradoxically, is heard at the start of 'Apocalypse Now'
• Credits preceder
• Song by The Doors (1967) and The Beatles (1969)
• ''That's the ballgame''