Most writers sow adjectives almost unconsciously into the soil of their prose to make it more lush and pretty. The sentences become longer and longer as they fill up with stately elms and graceful boughs and frisky kittens and sleepy lagoons.
William ZinsserTips can make someone a better writer but not necessarily a good writer. That's a larger package - a matter of character. Golfing is more than keeping the left arm straight. Every good golfer is a complex engine that runs on ability, ego, determination, discipline, patience, confidence, and other qualities that are self-taught. So it is with writers and all creative artists. If their values are solid their work is likely to be solid.
William Zinsser