Center letter: t
Outer letter: c i l o r v
Answers (36):
  vitriolic
  citric
  clot
  colt
  coot
  critic
  illicit
  licit
  lilt
  loot
  lotto
  riot
  root
  roti
  rotor
  rototill
  till
  tilt
  toil
  toll
  tool
  toot
  tori
  toric
  torii
  toro
  tort
  tricolor
  tricot
  trill
  trio
  troll
  trot
  victor
  vitriol
  volt