1 Reasoned argument (6)
4 Dampness (8)
10 Sheets of unbound paper (9)
11 Gapes (5)
12 A southern Eurasian falcon (5)
13 Naivete (9)
14 In an unclear manner (7)
16 Historical periods (4)
19 Stated (4)
21 Providing nourishment (7)
24 Women in love (9)
25 Willow (5)
26 Having some resemblance (5)
27 A citrus fruit (9)
28 Proof (8)
29 Spiritualists meeting (6)
Down
1 In a psychotic manner (8)
2 Occlusion (8)
3 Not our (5)
5 A discourtesy (7)
6 Thrive (archaic) (9)
7 Relax (6)
8 Christian holy holiday (6)
9 Prove true or correct (6)
15 Become more frugal (9)
17 Relating to Sicily (8)
18 Break the heart of (8)
20 Severe or far-reaching (7)
21 Show off (6)
22 A thick cream soup (6)
23 Hunting expedition (6)
25 Overweight (5)