Center letter: t
Outer letter: a b c i k r
Answers (42):
  brickbat
  arctic
  atria
  attack
  attar
  attic
  attract
  baccarat
  backbit
  backtrack
  bait
  bariatric
  batik
  brat
  cacti
  carat
  cart
  cataract
  ciabatta
  citric
  critic
  karat
  kart
  rabbit
  raita
  ratatat
  ribbit
  tacit
  tack
  tact
  tactic
  tart
  tartar
  tiara
  tibia
  tick
  tiki
  tikka
  track
  tract
  trait
  trick