1 Firms founded by more than one period of industriousness (10)
2 Briefest setback seen in shot (8)
3 Musical compositions a long time in the works (6)
4 I left Capital for a comfy seat (4)
5 Kept back 12 across somehow (8)
6 Suppose you and I follow the donkey? (6)
7 Single one - it follows French one (4)
13 Seems rider made it less wet (5)
15 Note cleric upset receiving this kind of mail (10)
17 St Lester upset colonists? (8)
18 Integers randomly directing where to go (8)
20 Enter salary - might be taxing! (6)
22 Feints around the best (6)
24 "Us" time, we hear (4)
25 Do not let American doughnut leave you out! (4)