Historical clue formulations

• Eats like a rodent — 2017-04-12
• Eats (at) — 2016-12-18
• Eats (at) — 2016-01-07
• Chews like a beaver — 2014-10-13
• Vexes, with "at" — 2008-12-20
• Really bothers, with "at" — 2007-04-24
• Plagues, with "at" — 2006-03-11
• Goes at like a beaver — 2000-11-27
• Doesn't eat politely — 2000-09-28
• Chews like a chipmunk — 2000-01-25
• Nibbles — 1994-03-27