Historical clue formulations

• "___ down the hatches!" — 2025-12-28
• Secure, with "down" — 2021-10-07
• Secure, with "down" — 2016-05-04
• Secure tightly, with "down" — 2006-07-09
• Close securely, with "down" — 1998-06-29
• Wooden reinforcing strip — 1998-05-15