1: Many sound prospects for prospectors (5)
2: Implement box for young cat (3)
3: Confined bear without a trade (9)
4: Endless taping-over is unsuitable (5)
5: You audibly ram partner (3)
9: Imported food injected with nitrogen (5)
10: There's uranium in many a flower (5)
11: Crew member is one in operating room (3)
12: Venomous enemy lurks in Caspians (3)