8 Prefix indicating half (4)
9 Showing firm determination (10)
10 Perch (6)
11 Breathed (8)
12 Possesses (4)
13 Acts on behalf of (10)
17 Not that (4)
18 Picture (5)
19 God of war (Greek mythology) (4)
20 Of questionable authenticity (10)
22 A stuck-up person (60s slang) (4)
23 Wandering (8)
27 Bobbins (6)
28 Repugnant (10)
29 Accomplishes (4)
Down
1 Companionship (10)
2 Sickens (8)
3 Brotherhood (10)
4 Utilizer (4)
5 Add (4)
6 Pace (6)
7 Skid (4)
14 A fuzzy fruit (5)
15 Spectacles (10)
16 Not "ourselves" (10)
19 Runs off (8)
21 Friend (Australian slang) (6)
24 Assert (4)
25 Within (4)
26 Chats (4)