Possible Clues:

• As in a concert (anag) — from the other side of the pond?
• Strange accents on air in America?
• Crane's action when flying across the Atlantic?
• Dubious nation's race caught in America?
• Crossing, eg, the Atlantic
• Ancient orcas swimming across the Pacific, say?
• Corsican with Etna erupting over the sea
• Canine co-star bombed over the water
• Extremely archaic containers damaged across the water
• Contain scare flying across the sea