1: Half disapprove of old king (3)
2: Core principle of taxi-o-meter? (5)
3: Write off aggregate (5)
4: Tour with crazy Mrs. Barton (9)
5: Free trade: highest bird for lowest bill(5)
6: Shredded chad, he decrees, is one ingredient (7,6)
7: Actress Tori, lacking direction, is getting the characters out of order(11)
9: Travel - pioneering art form (13)
11: Orchestra I'm reorganizing for certain conductor (11)
14: Requires five kills, or a single accurate shot. (3)
15: Act upset over kindergarten's interruption of seaside dessert course (9)
16: Standard style of music rejected (3)
19: Relative clause ultimately adopted by the kind (5)
20: The Irish are working for small clubs (5)
21: Discounting all odds, teen assured to succeed (5)
24: Feel sick from crack? (3)