10a Were all given share of lifebelts, apparently, to join navy (2, 2,3), 27a Precursor to deluge, it was said, gun getting damp (7), 29a Signal for one to knock hard after ring? (9), and 21d German commander is gracious, reflecting about French wife? (6) I think the answers are Go to sea, Moisten, Telegraph and Rommel, but can only partly parse them?