Answer: irongate

AnswerCrossword Clue
IRONGATEPrison entry barrier
IRONGATECastle's portcullis, often
IRONGATEEstate security feature
IRONGATEFormidable entryway
IRONGATECemetery entrance feature, at times
IRONGATENarrow gorge of the Danube River.
IRONGATEDanubian gorge.
IRONGATEEntry to a castle, maybe