6 Fails to remember (7)
7 Female organ (5)
9 Not false (4)
10 An unavoidable event (10)
11 Decapitated (8)
13 Relating to the iris of the eye (6)
15 Largest continent (4)
17 Malicious setting of fires (5)
18 Falls behind (4)
19 Prey (6)
20 At an indefinite time (8)
23 Warrantied (10)
26 Scarce (4)
27 Moral principle (5)
28 Type of glasses (7)
Down
1 Immaterial (10)
2 Refused (6)
3 Anglo-Saxon slave (4)
4 A province or territory (8)
5 An Indonesian island (4)
6 Strength (5)
8 Sharp high-pitched dog cries (7)
12 Amounts of medicine (5)
14 Inability to read (10)
16 Smudge (7)
17 Reference books (8)
21 Change (6)
22 Wall painting (5)
24 A tributary of the Rhine River (4)
25 Decreases (4)