Well, I would suggest a Claydol, or Blastoise as your spinner. Both are bulky enough to take repeated hits (though Claydol has alot of weaknesses), and have a decent amount of offensive capability.
These are from my Showdown teams, but you probably shouldn't copy them exactly since im also a n00b
Blastoise @Float Stone
Evs: 212 HP, 104 Speed, 192 SpA
Moves: Rapid Spin, Ice Beam, Scald, Brick Break
Timid Nature (LOL doesn't fit it's personality, but whatever)
Ability: Torrent
Claydol @Leftovers
EVs: Max HP, 128 each on D/SpD
Moves: Toxic, Rapid Spin, Stealth Rock, Earth Power
Sassy Nature
Ability: Levitate
Empoleon can also be a good defensive choice
Empoleon @Leftovers
EVs: Max HP, 224 Defence, 32 SpD
Moves: Stealth Rock, Toxic, Scald, Roar
Calm Nature
Ability: Torrent