The gas that you get when you combine this with hydrogen: that's the "rotten eggs" odor you're smelling / (To fit the word in the grid, use a PH, not an F -- we're forced here to go with the British spelling.)
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Orizzontali
1A
The gas that you get when you combine this with hydrogen: that's the "rotten eggs" odor you're smelling / (To fit the word in the grid, use a PH, not an F -- we're forced here to go with the British spelling.)
5A
This salad veggie, when displayed in the store, might be labeled "organic". / 'Twould be ironic indeed if the iceberg type were served on the Titanic!
6A
Study the sequence 11111111. (Take as long as you please.) / You might decide it's a bunch of ones. Or perhaps instead, a bunch of these!
Verticali
1D
This answer's kind of meta, I guess. (Accept that, and don't fight it.) / To do this to the riddle, you're gonna have to write it!
2D
A word for flexible and graceful -- a great word for a dancer. / If you're stumped, ask the blithering idiot. Surely he would hold the answer.
3D
Santa is a pro at this - he belts it with such style. / As one word, though, it's a dwelling, a standard domicile.
4D
You took me to see "choral groups". A concert -- thanks, my sweet daughter! / You misheard me, though; what I wanted to see were these structures, underwater.