The term 'stingy sorts' can be defined as people who are overly frugal with their money. The two crossword solutions for this term are 'cheapos' (7 letters) and 'misers' (6 letters). Cheapos are people who are always looking for the cheapest option, while misers are people who hoard their money and are unwilling to spend it. Both of these terms describe people who are very careful with their money and are not willing to part with it easily.