Answer: established

AnswerCrossword Clue
ESTABLISHEDProven
established(of a plant) Having taken root; growing well
established(of a church or religion) Recognized by the government as the national church or religion
established(of a person) Recognized and accepted in a particular capacity
establishedESTABLISH, to settle or fix also STABLISH
established(of a custom, belief, practice, or institution) Having been in existence for a long time and therefore recognized and generally accepted