The term 'Gain Offsetter' refers to a job that involves offsetting gains with losses. The term is often used in accounting and finance, where it is necessary to balance gains and losses in order to accurately report financial information. The crossword solution for the term 'Gain Offsetter' is 'Loss, ' which is a four-letter word. This indicates that the job of a Gain Offsetter involves balancing gains with losses in order to accurately report financial information.