I'm using our tiers for this.
Here are all the Pokemon that fit your Criteria:
These are all great pokemon. I would choose Miltank or Celebi, beause I feel Umbreon is better at stall walling than being a cleric. Personally, I don't like Lickilicky because the design is weird.. but that's just me.
Celebi is a nice one. I would use Celebi because it's one of my favorite pokemon. But again, that's just me. Here's a set I use:
Celebi @ Leftovers
Trait: Natural Cure
EVs: 252 HP / 160 Def / 96 SDef
Bold Nature (+Def, -Atk)
- Leech Seed
- Perish Song
- Heal Bell
Leech Seed and Leftovers heal you for about 18.85% each turn, or something like that. Perish Song forces switches nicely, and works great if they're the last pokemon. Heal Bell, because it's a cleric. And Psychic for STAB and to not be murdered by Taunt.
Miltank (F) @ Leftovers
Trait: Thick Fat / Scrappy / Sap Sipper
EVs: 104 HP / 132 Atk / 252 Def / 20 Spd
Adamant Nature (+Atk, -SAtk)
- Heal Bell
- Milk Drink
- Return / Body Slam
This is a kind of Tankish set. It has Heal Bell to rid your team of Statuses, and Milk Drink combined with leftovers to let you heal up. Return and Body Slam are for STAB, and Earthquake because it's Earthquake. High Base power and High accuracy.
Lickilicky isn't working for me on PO. It's not letting it learn Heal Bell... Anyway, I'll be nice and give you the link here to the Lickilicky moveset question.
None of them have Heal Bell in them however... So you're probably better off making your own. Here's Lickilicky's dex.