1: Aim to be even-handed (9)
5: Deputy at clock centre sounds hesitant (5)
8: Small songbirds destroyed mitt near diamond (7)
10: Frank turned brown sitting on mountains (7)
11: A Gore follows a Ryan (5)
12: Wood shavings? A strange device for a banner! (9)
13: Jewish leader second in the shower (5)
14: Oxygen is pretty amusing. (3)
15: 15-across Something good that blinds copper (5,7)
17: Argue about something boring (5)
18: Call for help oddly stops (3)
20: They secure money for the government, so we hear (5)
22: Healthy again, adored having company (9)
23: Mere owl inhabits large yard (5)
24: Adult party to entertain disheartened women (5-2)
26: Serious article penned by Hemingway (7)
27: Argument in the meeting (5)
28: Dine and drink with fan (9)