8 Ketch (4)
9 Kirk's starship (10)
10 One of the Gorgons (Greek mythology) (6)
11 Rehearse (8)
12 Pitcher (4)
13 Reject (10)
17 A group of cattle (4)
18 Simplified (5)
19 Brood (4)
20 Sluttish (10)
22 Supplements with difficulty (4)
23 Imperfectly formed (8)
27 Potion (6)
28 The state of being a bastard (archaic) (10)
29 Raised mark on the skin (4)
Down
1 A water-driven turbine (10)
2 Obtained (8)
3 Immediately obtainable upon request (10)
4 Cease (4)
5 Fertilizer ingedient (4)
6 Speech-giver (6)
7 Millisecond (4)
14 Indian antelope (5)
15 Elephants (10)
16 A variety show (10)
19 Advance screenings (8)
21 An island in French Polynesia (6)
24 Close by (4)
25 Unit of area (4)
26 A Great Lake (4)