The term 'Lace Collar' can be broken down into two crossword solutions: 'RUFF' and 'BERTHA'. A RUFF is a type of lace collar that was popular in the 16th and 17th centuries. It was typically made of starched linen and worn around the neck and shoulders. BERTHA is a type of lace collar that was popular in the 19th century. It was usually made of fine cotton or silk and was often decorated with embroidery or lace.