What does the cryptic crossword clue "Set in seclusion possibly showing lack of restraint (14)" mean?

The wordplay uses an anagram. anagram of SET + IN + SECLUSION = LICENTIOUSNESS The answer is LICENTIOUSNESS.

Set in seclusion possibly showing lack of restraint (14)

Daily Mail Cryptic #17188 | 8 Down | 2023-09-19 flower