The term 'GALLEY DIRECTIVE' is a crossword solution which is composed of two words. The first word, 'GALLEY', is a term used to refer to the kitchen area of a ship or aircraft. The second word, 'DIRECTIVE', is defined as an instruction or order given by a higher authority. Therefore, the term 'GALLEY DIRECTIVE' can be interpreted as an instruction or order given by a higher authority in relation to the kitchen area of a ship or aircraft. The fourth letter of this term is 'T', which is the solution to the crossword clue 'STET'.