6 Sports associations (7)
7 Joined together (5)
9 Twenty-four in Roman numerals (4)
10 Sabotaged (10)
11 Diabolical (8)
13 Sputum (6)
15 Exam (4)
17 Impostor (5)
18 A three-tone Chadic language (4)
19 Redwing (archaic) (6)
20 A city in China (8)
23 Bankers (10)
26 Hammer or saw, for example (4)
27 Bumpkin (5)
28 Homilies (7)
Down
1 Stimulated to action (10)
2 Globular clouds (6)
3 Not new (4)
4 Not suitable (8)
5 Pocketbook (4)
6 Seventy-two in Roman numerals (5)
8 A boat used to dig up a river bed (7)
12 Raises (5)
14 Legal proceeding (10)
16 The electric company or water works (7)
17 Ferociously (8)
21 Ludicrous (6)
22 Long periods of geologic time (5)
24 Requests (4)
25 Not the west (4)