15 a) Covered with thin,flat slabs of fired clay (5) sorry - no letters!
16 a) Salted and cured sides of pork (8) S?E?G?R?A?
5 d) In the US and Canada, a narrow ravine cut by a fast stream ( 5) ?U?C?
8d ) Brian ? , head coach of the England rugby union tesm 2006-2008 (6) ?I???N
9d) A West Indian shrub, a source of Indigo (4) ?N??
10 d) ?11of Aragon, husband of Isabella 1 of Castille and father of Catherine of Aragon (9) ?E???N?N?