Center letter: o
Outer letter: c g h i l r
Answers (36):
  choirgirl
  horologic
  chloric
  chocoholic
  choir
  clog
  cocci
  coho
  coil
  coir
  colic
  color
  cool
  corgi
  croc
  croci
  gigolo
  googol
  grog
  hooch
  horror
  ichor
  igloo
  illogic
  loch
  loci
  loco
  logic
  logo
  logroll
  loll
  olio
  rigor
  rococo
  roil
  roll