The term BY SURROUNDED can be broken down into four crossword solutions: ISLE, ISLA, ENCLAVE, and GIRT. ISLE is an archaic term for an island, while ISLA is the Spanish word for island. An ENCLAVE is a territory surrounded by another country or state, and GIRT is an old-fashioned word meaning to encircle or surround. Therefore, the term BY SURROUNDED can be interpreted as an island, territory, or other area that is surrounded by something else.