Center letter: a
Outer letter: c g h i p r
Answers (34):
  graphic
  aargh
  acacia
  acai
  agar
  arch
  archaic
  aria
  carp
  carpi
  chai
  chair
  chap
  char
  chia
  chica
  cigar
  circa
  crag
  crap
  gaga
  graph
  grappa
  hair
  harp
  highchair
  pair
  papa
  paragraph
  parch
  pariah
  pica
  priapic
  raga