Center letter: h
Outer letter: a c e k p y
Answers (23):
  paycheck
  ache
  achy
  cache
  chap
  cheap
  check
  cheek
  cheeky
  cheep
  each
  hack
  haka
  hake
  happy
  heap
  heck
  hype
  peach
  peachy
  yeah
  yecch
  yech