Center letter: r
Outer letter: a f i l o w
Answers (36):
  airflow
  afar
  affair
  afro
  airfoil
  aria
  aril
  arrow
  fair
  farro
  farrow
  flair
  floor
  flora
  floral
  foofaraw
  fora
  frail
  friar
  frill
  lair
  liar
  lira
  oral
  raffia
  rail
  rial
  riff
  riffraff
  rill
  roar
  roil
  roll
  roof
  wallaroo
  warrior