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