Related Clues:

• Unleaded alt.
• What's expected
• -- U.S. Pat. Off.
• Normal (Abbr.)
• Part of E.S.T.: Abbr.
• Brief rule
• Rule of thumb
• Brief rule?
• Kind of time (Abbr.)
• "Andy Capp" cartoonist Smythe
• Statistical measure
• "Cheers" barfly
• The 'S' in E.S.T.: Abbr.
• Gas pump abbr.
• Usual