What does the cryptic crossword clue "Deviously, challenge wit of higher education employee (8,6)" mean?

The wordplay uses an anagram. anagram of CHALLENGE + WIT + OF = TEACHINGFELLOW The answer is TEACHINGFELLOW.

Deviously, challenge wit of higher education employee (8,6)

Daily Mail Cryptic #17572 | 6 Across | 2025-03-11 flower