Actor and wrestler who's known for his excessive neckwear
11A
Blank Banshee song that samples "Aquatic Ambience" from Donkey Kong Country, "Water Temple" from The Legend Of Zelda: Ocarina Of Time, and the water droplet sound from when you recycle something when using Microsoft Windows Longhorn
13A
Interjections of indifference
14A
Sailors say it
15A
Garment in- ah damnit I can't make this clue alliterative because there's no G in the Hawaiian alphabet
16A
What the first letter in 9-Across stands for (and what the last letter in 10-Across doesn't)