Center letter: c
Outer letter: a d e h k l
Answers (53):
  chalked
  accede
  acceded
  aced
  ache
  ached
  alack
  cache
  cached
  cackle
  cackled
  cake
  caked
  call
  calla
  called
  cede
  ceded
  cell
  celled
  chad
  chalk
  challah
  check
  checked
  cheek
  clack
  clacked
  clad
  clade
  dacha
  decade
  decal
  deck
  decked
  deckle
  each
  hack
  hacked
  hackle
  headache
  heck
  heckle
  heckled
  lace
  laced
  lack
  lacked
  leach
  leached
  lech
  leech
  leeched