Related Clues:

• Part of 57-Down: Abbr.
• In essence
• AAA, e.g.
• Padres' league: Abbr.
• P.T.A. part: Abbr.
• High-school dept.
• Pt. of NBC
• Members' body: Abbr.
• Part of NBC: Abbr.
• Soc.
• N.F.L.'er or N.B.A.'er
• PGA part: Abbr.
• Part of AARP
• Letter wearer: Abbr.
• 31 Across, for example