Solution to Sunday Independent Cryptic Crossword no 1,200

Across: 1 Invest; 4 Bungalow; 10 Cast-off; 11 Bushman; 12 Moratorium; 13 Dace; 15 Endowed; 17 Debtors; 19 Threads; 21 Diecast; 23 Cant; 24 Cultivator; 27 Bookend; 28 Bengali; 29 Ninepins; 30 Retype. Down: 1 Incumbent; 2 Visored; 3 Sportswear; 5 Unbounded; 6 Gust; 7 Lumbago; 8 Wince; 9 Afar; 14 Observance; 16 Disburden; 18 Saturnine; 20 Run down; 22 Actuary; 23 Cabin; 25 Tuba; 26 Seep.