2: Icy turning, for example, on top (5)
3: Came back on a diet anew and wasted away (9)
4: Number One in facetiousness (3)
5: Englishman opening a can to dine at home (3,2)
8: Rings for the groups (5)
9: Roosevelt's undergarment? (5)
11: Take a turn or a thousand dollars (3)
13: The end, you say? On the contrary! (3)