Historical clue formulations

• ___'clock scholar — 2013-12-15
• Sinew: Prefix — 2008-12-26
• ___'clock — 2008-11-28
• "___'clock scholar" — 2006-02-05
• "A ___'clock scholar" — 2003-09-11
• "...___'clock scholar" — 1996-07-07
• "A _____' clock scholar" — 1995-12-26
• "A _____'clock scholar" — 1994-01-30