The term 'was a FINK' can be broken down into three crossword solutions: RATTED (6 letters), SANG (4 letters), and TOLD (4 letters). A 'FINK' is an old-fashioned slang term for a person who informs on someone else, usually to the authorities. Therefore, the phrase 'was a FINK' implies that the person in question was a snitch or informant. The crossword solutions can be interpreted as follows: RATTED means to inform on someone, SANG means to give away information, and TOLD means to reveal something. Taken together, these three solutions suggest that the person in question was a snitch who gave away information and revealed secrets.