1/7 Across, North America in shock after competitor gets through early round,needing power to stay up (7,4,3)
9 Across, Sanctimonious before feeling pain (7)
10 Across, Detection system misses a sweet potato covering the end of some ship's rigging? (7)
12 Across, It's Alchemi (about time) Surprisingly showing sporting prowess (11)
Compiler - ALCHEMI
Many Thanks