2: German painter in a southern state (5)
3: Slippery deck spots are on either side (9)
4: Abstract art is just one step.(5)
5: Muhammad's first of the desirable ones (1-4)
6: Ten Canoes galled Chinese (9)
7: Road reaches objectives. (7)
9: Solitary one finally putting me back in service (7)
12: A country, one said, in trouble (9)
13: Increase in force may finish in soccer riot (9)
14: Discompose each half of turbines (7)
15: Oblique demand for a new church (7)
18: Egad, a retracting saw (5)
19: Ensemble originally formed with ocarina, cello, theremin, euphonium, and tabla (5)
20: First to utterly defeat fish. (5)
21: Take tricks with this wit? (5)