xmas_lights#1
11) Eldest son of the King of France
12) Inscription
13) Moses
14) Brimstone
15) No oxygen!
16) Crack it
17) 747!
18) January 6
19) A feeling of great elation
20) Makes it possible to evade
17 - Jumbo
11) Dauphin; 12) Epitaph; 13) Prophet; 14) Sulphur; 15) Phlogiston; 16) Decipher 18) Epiphany; 19) Euphoria; 20) Loophole.
There's no 'ph' in that, Tropicgal - but there is in "elephant", so I'll go for that
xmas_lights#1
11) Eldest son of the King of France
12) Inscription
13) Moses
14) Brimstone
15) No oxygen!
16) Crack it
17) 747!
18) January 6
19) A feeling of great elation
20) Makes it possible to evade
16) Cipher.
15 - Asphyxiated