I Prize Cryptic Crossword No 1528
9 Across, Platypus say, not captured by second group of soldiers (9)
12,28,Across,4 Down,1 Across,22 Across, Lines showing the impact of wintry weather - King's Cross? (1,4,6,2,3,2,2,4,3,5,4,2,3,4,3,1,7)
13 Across, Most pleasant and most satisfactory, receiving redirected mail (8)
Sorry about the lack of letters
Many thanks in advance