The term 'strait-laced sort' is often used to describe someone who is very conservative and follows strict rules. The two crossword solutions for this term are 'BLUENOSE' (8 letters) and 'priss' (5 letters). BLUENOSE is a slang term that originated in Scotland and is used to describe someone who is overly moralistic or judgmental. Priss is a slang term that is used to describe someone who is prim, proper, and excessively neat. Both terms are used to describe someone who is very conservative and follows strict rules.