21a.dual purpose stores for life-boats?(5,8)WATER?????I??
19a.it may need a jack up before repairing(7)????p??
16d.moving stair,perhaps(5)?????
20d.excellent,but not fast, way to surpass others(5)????L
17d.one would be mad to be of them(6)?????S
that is the lot.Thanks very much