6 In an unspecified manner (7)
7 Vassal (5)
9 Boys and men (4)
10 Barely (10)
11 Remnants or residues (8)
13 Air that is dirty (6)
15 Area of central London (4)
17 Smears (5)
18 A group of sailors (4)
19 Mid-western state (6)
20 Completely happy (8)
23 Discourage (10)
26 Hawaiian island (4)
27 An online directory (5)
28 Barbary pirate (7)
Down
1 Resistant (10)
2 Medicine man (6)
3 Pitcher (4)
4 Mark of omission (8)
5 Soft white Greek cheese (4)
6 Wager (5)
8 A poem of pastoral life (7)
12 A young pigeon (5)
14 From time to time (10)
16 Not transparency (7)
17 Put at a disadvantage (8)
21 Refuse to acknowledge (6)
22 Show someone to their seats (5)
24 Laughs (4)
25 Technician (abbrev.) (4)