The term 'SAILOR's Patron' can be solved by two crossword solutions: ELMO (4 letters) and STELMO (6 letters). ELMO is an acronym for the Emergency Life-saving Appliances and Stowage Manual, which is a guidebook published by the International Maritime Organization (IMO) that provides information on the safety equipment and supplies that should be carried on board ships. STELMO stands for the Standardized Training and Examination of Masters and Officers, which is a program developed by the IMO to ensure that seafarers have the necessary knowledge and skills to safely operate vessels.