Answer: solera

AnswerCrossword Clue
SOLERAType of sherry.
SOLERASherry classification
SOLERAMaturity classification of sherry
SOLERASherry casks
soleraa system of sherry production
solera(esp. in Spain) a series of casks, graded according to age, in which sherries and brandies are stored while maturing
soleraclassification for the sherries or brandies having the greatest maturity in a solera