Complex sentence: Fashion designers work in a number of ways in designing clothing and accessories; and, because of the time required to bring a garment onto the market, must at times anticipate changing consumer tastes.
Split into simpler sentences: Fashion designers work in a number of ways in designing clothing and accessories. They attempt to satisfy consumer desire for aesthetically designed clothing; and, because of the time required to bring a garment onto the market, must at times anticipate changing consumer tastes.