What does the cryptic crossword clue "Audibly resembling fool about to get fake tan (8)" mean?

The wordplay uses an anagram. anagram of ASS (synonym="fool") + ON (synonym="about") + TAN (synonym="TAN") = ASSONANT The answer is ASSONANT.

Audibly resembling fool about to get fake tan (8)

Guardian Cryptic #29198 | 21 Across | 2023-10-11 flower