Center letter: l
Outer letter: a k o t u w
Answers (30):
  walkout
  allot
  allow
  alto
  atoll
  koala
  kola
  loll
  look
  lookout
  loot
  lotto
  lout
  luau
  lull
  lulu
  outlaw
  outlook
  outtalk
  talk
  tall
  tallow
  toll
  tool
  total
  walk
  wall
  wallow
  waul
  wool