The phrase "full play" can be replaced by a number of synonyms depending on the context in which it is used. Words such as "free rein", "unrestricted scope", "unfettered freedom", "uninhibited access", "unhindered opportunity" and "unbridled expression" are all possible alternatives.
For instance, in the context of art or literature, an artist or author might relish the opportunity to give full play to their creativity without constraints. In a sports competition, an athlete may be given full play to showcase their talent and skills. Similarly, in a business environment, an entrepreneur may require full play to develop and succeed without any external interference or restrictions. Whatever the context, the phrase "full play" is indicative of complete and unbridled freedom to act or express oneself in the fullest way possible.