The phrase "are more clearly defined" is correct and usable in written English.
You can use it when discussing concepts, terms, or criteria that have become more specific or precise over time.
Example: "In the latest edition of the manual, the roles and responsibilities of each team member are more clearly defined."
Alternatives: "are better specified" or "are more explicitly outlined".
The goals and boundaries of the government-sponsored qarajāy style are more clearly defined, and thus games are easier to control.
The dialogue, as so often with McGovern, occasionally lurches into soapbox-rant mode, while some characters are more clearly defined than others (Robert Pugh's melancholy priest is particularly memorable).
The Graduate Student Council is considering a motion which would oppose the placement of graduate resident tutors in off-campus living groups until their responsibilities are more clearly defined.
The first priority is to broaden survey efforts so the breeding distributions of all subspecies of Black Swift are more clearly defined and to monitor known breeding sites to determine any declines.
Good and evil are more clearly defined in Tolkien's vision, shaped by closeness to the two world wars of the 20th Century.
The solutions are more clearly defined," said Fabius.
"By setting standards that are recognized by some of the world's largest and most prestigious companies, we are more clearly defining what skills are valuable and how they translate to future employment opportunities," said General Assembly co-founder and chief executive, Jake Schwartz in a statement.
"By setting standards that are recognized by some of the world's largest and most prestigious companies, we are more clearly defining what skills are valuable and how they translate to future employment opportunities," said General Assembly co-founder and chief executive, Jake Schwartz in a statement at the time of the program's launch in mid-October.
It might have helped if "cultural history" were more clearly defined, too.
