Center letter: g Outer letter: d e f l n u Answers (48): engulfed unfledged deluge deluged dengue dung edge edged egged engulf fledge fledged flung fudge fudged fugu fugue geld gelded gelee gelled gene glee gleeful glen glue glued glug glugged guff gulf gull gulled gunned ledge legend legged luge luged lugged lung lunge lunged lungful nudge nudged unglue unglued