Center letter: t
Outer letter: a d e g n v
Answers (61):
  advantage
  advantaged
  advent
  agate
  agent
  andante
  ante
  anted
  antedate
  antedated
  antenna
  antennae
  attend
  attendant
  attended
  attendee
  data
  date
  dated
  dent
  dented
  detente
  eaten
  entente
  event
  gadget
  gannet
  gate
  gated
  gent
  gnat
  natant
  neat
  neaten
  neatened
  negate
  negated
  netted
  tagged
  tang
  tangent
  tanned
  tatted
  teat
  teed
  teen
  teenage
  teenaged
  tenant
  tend
  tended
  tenet
  tent
  tented
  vantage
  vegetate
  vegetated
  vendetta
  vent
  vented
  vetted