Answer: seal

AnswerCrossword Clue
SEALApproval shower
SEALCachet
SEALStamp of approval
SEALClose up
SEALConsumer protection
SEALApply wax
SEALNavy commando
SEALWaterproof
SEALGuarantee
SEALMammal with flippers
SEALSignet
SEALCircus barker
SEALHeidi Klum's ex
SEAL.. of approval
SEALMake airtight
SEALDollar-bill feature
SEALEmblem on the president's lectern
SEALIt makes an impression
SEALWax on an old letter
SEALEnvelope closer
sealemblem or symbol used to indicate that something is authentic
SEALEmblem
SEALBering Sea swimmer
SEALClose hermetically
SEALMarine Land performer
SEALShut tightly
SEALYeats' country
SEALHallmark
SEALHarp or elephant
SEALPod member
SEALBarker at Sea World
SEAL"Burp" the Tupperware
SEALLetter closer
SEALNavy diver
SEALWhiskered critter
SEALFin-footed mammal
SEALNavy elite
SEALShut up
SEALNavy special ops acronym
SEALPrepare for posting