Center letter: i
Outer letter: a d e f t x
Answers (35):
  fixated
  affix
  affixed
  aide
  aided
  ataxia
  defied
  deified
  died
  diet
  dieted
  eddied
  edified
  edit
  edited
  exit
  exited
  fetid
  fiat
  fief
  fife
  fifed
  fitted
  fixate
  fixed
  idea
  ideate
  ideated
  taxi
  taxied
  tide
  tided
  tidied
  tied
  tiff