1 Elongate (7)
5 Attacking with explosives (7)
9 Preserves (9)
10 Jewish teacher (5)
11 The central theme (7)
12 Lumps of precious metals (7)
13 Enclosed displays (9)
15 Jet-black (5)
17 Directed (5)
19 Apparently (9)
22 Injections (7)
25 Encroach (7)
26 Representative (5)
27 Perfect (9)
28 Used to spin yarn (7)
29 Besmirched (7)
Down
1 Almost boils (7)
2 Heavy showers (9)
3 Unsinkable ship (7)
4 Female inheritors (9)
5 Merchant navy petty officer (5)
6 Illusions (7)
7 Permeate (5)
8 Challenge or dispute (7)
14 Samples (9)
16 Arranger (9)
17 Published once a year (7)
18 Expunged (7)
20 Urge (7)
21 Ceded (7)
23 A resin used in incense (5)
24 Barrel plug (5)