Related Clues:

• Guideline: Abbr.
• Pt. of EST
• Time zone abbr.
• The clap, e.g.
• PST pt.
• Dreaded catch: Abbr.
• Avg. level
• The norm: Abbr.
• Pt. of MST
• Part of CST: Abbr.
• Kind of deviation, in stats.
• Love bug?
• Customary: Abbr.
• Part of EST: Abbr.
• Benchmark, briefly