4 down Cost of travelling in coach a long way east
15 down Small child on railway grunts
18 downTime being encased in concrete, impassive (6)
9 across Former airline with a connection between North and South America? (6)
11 across Corporal joins with girlfriend in lively dance (8)
12 acrossBe inclined to postpone (6)
24 across Spike beer used by one politician (6)