Crossword Puzzle Helicons

Clue: Helicons

Helicopter topper (ROTOR with 5 letters)
Helium or neon (e.g. GAS with 3 letters)
U.S. attack helicopter (COBRA with 5 letters)
Helios, for one (SUNGOD with 6 letters)
Ones inspired by Helicon (POETS with 5 letters)
Like a heliogram (CODED with 5 letters)
Helixes (SPIRALS with 7 letters)
Electrical pioneer whose last known U.S. patent was for a helicopter-plane (TESLA with 5 letters)
Atomic number of helium (TWO with 3 letters)
Some helicopters (COBRAS with 6 letters)