Historical clue formulations

• Lose one's reserve — 2015-06-04
• Words after a yell of "Police!" — 2013-08-05
• Cry that may accompany pounding — 2009-07-23
• Shout accompanied by pounding — 2006-05-05
• Door pounder's demand — 2003-10-08
• Cry of the police while pounding a door — 2001-02-19
• Police order — 2000-08-03
• Unfold — 1997-08-17
• Cops' cry at the door — 1995-07-26