Center letter: n
Outer letter: d e f g l u
Answers (51):
  engulfed
  unfledged
  defend
  defended
  defund
  defunded
  dengue
  denude
  denuded
  dune
  dung
  dunned
  ended
  endue
  endued
  engulf
  fend
  fended
  fennel
  flung
  fund
  funded
  funnel
  funneled
  gene
  glen
  gunned
  legend
  lend
  lune
  lung
  lunge
  lunged
  lungful
  need
  needed
  needful
  needle
  needled
  nene
  nude
  nudge
  nudged
  null
  undefended
  undue
  unfed
  unfunded
  unglue
  unglued
  unneeded