1: Later round without an opponent (3)
2: Brand on utilitarian stocking: 'Krispy Kreme' (5)
3: Call to drink like feeding ducks? (7,2)
4: Fix the oil platform ... (3)
5: After arrival, pair of ghosts making noise of frustration (5)
8: First-class puzzle originally from Ontario is available (2,3)
9: Record left by teacher in Siam (5)
11: Cull out from top ten (3)
13: Therefore, finish off this bit of work (3)