Historical clue formulations

• Takes off, with "it" — 2023-05-06
• Their spines aren't flexible — 2022-10-14
• Has reservations about? — 2022-08-04
• Biblioklept's targets — 2018-08-12
• Bibliophile's love — 2013-04-09
• Leaf holders — 2010-07-07
• These may be hit or cooked — 1996-01-11