sundown..rundown
diddled gagging
Teachertea - liquidache - painE.R. - Emergency Room
Suburbs, Cobwebs, Hobnobs.
One country that fits your criteria is Finland. It has seven letters, the third letter is 'n,' and the sixth letter is 'a.'
adjunct
escapee
planner, scanner, scarier, wearier
In alphabetical order, some 7-letter words that have the letter E as the third and sixth letter:AbetterAdelgesAmendedAmenderAmercerAreoletAtelierAvengedAvengerAvertedAverterBeecherBlearedBleaterBleederBlendedBlenderBlessedBlesserBreadedBreadenBreakerBreederCheapenCheaterCheckedCheckerCheekedCheererChequerChesselChessesChestedCheasterCleanedCleanerClearedClearerCleaverCreamerCreasedCreaserCreeperCrestedDjereedDreadedDreaderDreamerDredgerDresdenDressedDresserDuellerDwellerDyeweedElectedEmendedEmenderErecterFaeroesFieldedFielderFledgedFleecedFleecerFleshedFreezerFreshenFresherFrettedFrettenFretterGleanerGreasedGreaserGreatenGreaterGreavesGreeterGuesserIce TeaKleenexKneaderKneelerNeedlerOreweedOverfedOvergetOverredOverseaOverseeOversetOverewOverwetPhellemPiercedPiercelPiercerPleaderPleasedPleaserPleatedPledgedPledgeePledgerPledgetPremierPresleyPressedPresserPresterPreteenPretzelPreviewQuelledQuellerQuerierQuesterRoedeerScentedScepterSeedbedSeetherShearedShearerSheavedShedderShelledShellerShelleyShelterSherbertSkelterSleavedSledderSleeperSleevedSlenderSmearedSmellerSmelterSneakerSneererSneezerSpeakerSpearerSpeiesSpecterSpeederSpellerSpencerSpenderStealerSteamedSteamerSteelerSteepenSteererStellerStemmedSpeppedStepperSternedSwearerSweaterSweeperSweetenSwelledSwelterTheatreTheoremTreaderTreatedTreeletTrekkerTressedTweeterTweezerUneagerUnendedUpendedViequesWheatenWheeledWheelerWhelkedWhelpedWhetherWielderWreckerWreckedWrestlerYielder
estates
Chasten
avenues
That's probably "mustard." The "p" is likely incorrect.