The term 'Source of Fleece' can be answered by four different crossword solutions: ALPACA (6 letters), RAM (3 letters), LLAMA (5 letters), and EWE (3 letters). Alpacas are domesticated animals that are native to South America and are known for their soft, luxurious fleece. Rams are male sheep that are often used for their wool. Llamas are also domesticated animals that are native to South America and are known for their thick, warm coats. Lastly, ewes are female sheep that are also used for their wool. All of these animals are sources of fleece and can be used to make clothing and other items.