Center letter: l
Outer letter: a c h n t u
Answers (42):
  unlatch
  actual
  anal
  annal
  annual
  annul
  call
  calla
  canal
  cannula
  catcall
  catchall
  caul
  challah
  clan
  clutch
  cull
  cult
  halal
  hall
  halt
  haul
  hula
  hull
  lacuna
  lantana
  latch
  lath
  launch
  luau
  lull
  lulu
  luna
  lunch
  lunula
  natal
  null
  tactual
  talc
  tall
  ulna
  unclutch