Center letter: e
Outer letter: a c h i l m
Answers (47):
  chemical
  ache
  acme
  ahem
  allele
  cache
  came
  camel
  camellia
  celiac
  cell
  celli
  chalice
  chicle
  chime
  cliche
  clime
  each
  email
  emcee
  hale
  heal
  heel
  heliacal
  helical
  hell
  helm
  heme
  icicle
  lace
  lame
  leach
  lech
  leech
  lemma
  lice
  lime
  mace
  male
  malice
  meal
  mecca
  melee
  meme
  mice
  mile
  mime