Center letter: g
Outer letter: h o r t u w
Answers (24):
  outgrowth
  wrought
  goth
  gout
  grog
  grotto
  grout
  grow
  growth
  guru
  ought
  outgo
  outgrow
  outthought
  rotgut
  rough
  thorough
  though
  thought
  through
  throughout
  thug
  tough
  trough