29 across: Hard drying concrete made from shells, lime, gravel and stones (5). I have t?b?y 48 across: A farm animal at a certain defined time of maturity, typically being three or four years for cattle (4). I have ?g?d. 11 down: A military caltrop in the shape of two or more twisted nails, laid down to impede wheeled vehicles and formerly, cavalry horses (5,4). I have c?o?s, ?o?t. 15 down: A large beer mug or glass (6). I have s?i?er.