Center letter: o
Outer letter: a c f i l y
Answers (46):
  officially
  aioli
  alloy
  aloof
  aloofly
  cacao
  calico
  callaloo
  ciao
  cloaca
  cloy
  coal
  coca
  cocci
  cocoa
  coif
  coil
  cola
  colic
  cool
  coolly
  coyly
  falloff
  foal
  focaccia
  focal
  foci
  foil
  folic
  folio
  folly
  fool
  layoff
  loaf
  local
  locally
  loci
  loco
  loll
  loofa
  loyal
  loyally
  offal
  official
  oily
  olio