Center letter: p
Outer letter: a d i l t u
Answers (37):
  plaudit
  adapt
  appall
  applaud
  lipid
  paid
  pail
  palapa
  palatal
  palatial
  pall
  pallid
  palp
  papa
  papal
  papilla
  pill
  pipit
  pita
  pitapat
  plaid
  plait
  plat
  puli
  pull
  pulp
  pulpit
  pupa
  pupal
  pupil
  putt
  tapa
  tilapia
  tipi
  tulip
  uplit
  uptilt