1 Measured amount of drugs (6)
4 Just north of Texas (8)
10 Capitulate (9)
11 The sum (5)
12 Gemstones (5)
13 Great in range or scope (9)
14 Tomes (7)
16 Cashews, for example (4)
19 Occupational Safety and Health Administration (4)
21 Mournful (7)
24 Complainant (9)
25 Native of New Zealand (5)
26 Horned animal (5)
27 Honors (9)
28 Ran off (8)
29 Sunglasses (slang) (6)
Down
1 Disintegrate (8)
2 Functional (8)
3 Suppose or surmise (5)
5 Type of protein that forms hooves (7)
6 Before birth (9)
7 Exceeded (6)
8 Partners (6)
9 Bovine mammary glands (6)
15 Mislead (9)
17 Had the financial means necessary (8)
18 Marks of omission (of words) (8)
20 Stir up (7)
21 Disfigure (6)
22 Refrained from harming (6)
23 Madman (6)
25 A protective covering of vegetable matter (5)