The term 'had effect' can be broken down into three crossword solutions: TOLD (4 letters), TOOK (4 letters), and MILITATED (9 letters). TOLD is a verb meaning to communicate information to someone, usually through speech. TOOK is also a verb, meaning to take possession of something. MILITATED is an adjective meaning to have a strong influence on something. All three words can be used to describe the idea of having an effect on something.