What does the cryptic crossword clue "Friars: set involved with miracle (10)" mean?

The definition is "Friars". The wordplay uses an anagram. anagram of SET + MIRACLE = CARMELITES; definition: "Friars:" The answer is CARMELITES.

Friars: set involved with miracle (10)

Times Cryptic #28712 | 26 Across | 2023-09-19 flower