Center letter: r
Outer letter: c g i m n p
Answers (26):
  crimping
  cirri
  crimp
  cringing
  grim
  grin
  grinning
  grip
  griping
  gripping
  mirin
  miring
  nigiri
  pricing
  prig
  prim
  priming
  primp
  primping
  ricin
  ricing
  rigging
  rimming
  ring
  ringing
  ripping