1A: Is [a wish] equivalent to DREAM? If not, you may want to delete [a] and/or rephrase.
6A: I think [heads of] would be more accurate; something like [and the leaders of] might keep your surface sense. If you're just trying to get an O and A, though, I would recommend staying as thematic as possible to Aquaman (e.g., Orca Academy).
7A: Not sure what [takes] is doing here; I personally like the [for its] referring back to [swine], but some people don't like doubling up like this.
8A: I like this idea, but maybe [tail?] would sound stronger than [ending]?
9A: Nice (but also, ouch!).
1D: This really comes down to whether you want to put ISIS in a puzzle and, if you do, if you want to clue it directly as [terrorist organization]. I think it's all fair game, but I know some solvers dislike seeing stuff like that. (It's also technically a deletion of IS and IS.)
2D: I think this is R+OPES*, in which case it's an indirect anagram from [position]. Unless we're talking about straight abbreviations being anagrammed, I'm personally always against this. (I do like the surface, though.)
3D: [Go back with ease about you] is funny; we can quibble about whether [about you] is a fair callback, but I get it.
4D: I really like this, I'm just not sure [Hearty ingredient] is accurate. Maybe with a ?
5D: I don't understand the surface, but I do like the construction.