Center letter: w
Outer letter: d h i l n o
Answers (21):
  downhill
  down
  downwind
  hollow
  howl
  lowdown
  nohow
  widow
  widowhood
  wild
  wildwood
  will
  willow
  wind
  window
  winnow
  wino
  wood
  woodwind
  woohoo
  wool