7: Confident to an extreme
8: Water temperature 'gauge'
11: Can't take it any longer
21: Put a new price on, say
25: Garments worn by the Ganges
39: They incite responses
41: Beethoven's 'Tempest,' e.g.
47: Survives without help
50: Job for a grease monkey
52: You don't need a license to fly it