The term BOTANIST SAC is composed of two crossword solutions: ASAS (4 letters) and FLORA (5 letters). ASAS stands for 'Association for the Study of Animal Behavior' and FLORA stands for 'FLORA and Fauna'. Botanists are scientists who study plants, and SAC stands for 'Special Area of Conservation', which is a protected area designated by the European Union to conserve habitats and species. Therefore, the term BOTANIST SAC can be interpreted as a botanist studying the FLORA and fauna of a Special Area of Conservation.