1: California has an artificial waterway (5)
2: Pitcher, lunatic, not married (5)
3: What this puzzle is (3)
4: Philosopher trashed Zen ethics (9)
5: Paradise without second shelter? (5)
6: Bar mail of unadorned capital (5,6)
7: Throw a fit as ice is tossed in shower (5,4)
8: Red Square leaders picking up wild stories with electronic gear (9)
12: A Hollywood star upset about paparazzi hub in crude social event (6,5)
14: Got used to western city after it eliminated a lot of noise (7,2)
15: Terribly versatile family (9)
16: Columbine takes stage during repeated Iolanthe opening, in blue-green (9)
21: Adjust to initially having little juice (5)
22: Miserable raise follows poor grade (5)
23: Had dressed formally without a hat (5)
26: Telekinesis pinches Albanian coin (3)