I will start from the beginning. Keep in mind that these fish are SUPPOSED to do these things, but may not in some people's tanks. I witnessed ALL of them acting the aforementioned ways, both in nature and in tanks.
All Wrasses are jumpers, I have seen at least 4-5 that have done it from nearly every readily available species. Including Mysteri. If you have a hole in your tank - they will find it. Both of the above triggers will eat clams. Actually most of them will pick at mantles. Orange shoulder is a widely available fish, also extremely hard to acclimate. If you decide to get one, ask the guy that has one how he went about it. Clown tangs are aggressive, but you usually only have to worry about tangs in the same species (it's about 50/50 with if they will bother other fish). Potter’s Angel would be a no-no for a reef and so would a Moorish Idol. With the Moorish Idol and the Heniochus , neither is actually good for a reef.
If you are looking for a centerpiece fish, you also might want to look into Angelfish in the Genicanthus species. You can just google that. Then with Butterflyfish you can get a Yellow Zoster Butterfly (one of my favorite fish). Then when it comes to Tangs, nearly every one gets over a foot long with the exception of the Lieutenant and Kole Yellow Eye tangs. I would suggest Hawkfish, but I take it that you want something more active?