Related Clues:
- Onetime telecom giant
- Provider of daily listings: Abbr.
- Wall St.'s Big Board
- Old telecom inits.
- Market found in seven of this puzzle's other entries
- Wall St. inits.
- Competitor of 17-Across
- The Big Board, for short
- Cousin ___ of 'The Addams Family'
- Classic TV Cousin
- Index source
- Morticia's cousin
- ''The Addams Family'' cousin
- Addams hairy cousin
- Big Board letters