1 Across, Makes pet of mammal occupying pens behind London building in the past (12)
11 Across, Surround most of union in drink (9)
13/22 Across, Old North American concealed heavyweight round object, without hope of success
(2,1,6,2,7)
15 Across, Spooner's fish and cabbage - and where it's eaten? (4,4)