Center letter: h
Outer letter: a c d e i p
Answers (37):
  headpiece
  ache
  ached
  ahead
  aphid
  cache
  cached
  chad
  chai
  chap
  chapped
  cheap
  cheapie
  cheep
  cheeped
  chia
  chic
  chica
  chichi
  chide
  chided
  chip
  chipped
  dacha
  deadhead
  deadheaded
  each
  head
  headache
  headed
  heap
  heaped
  heed
  heeded
  hide
  hippie
  peach