What does the cryptic crossword clue "Spurned, I fail badly; did I mean to say that? (8,4)" mean?

The definition is "did I mean to say that?". The wordplay uses an anagram. anagram of SPURNED I FAIL = FREUDIANSLIP The answer is FREUDIANSLIP.

Spurned, I fail badly; did I mean to say that? (8,4)

Guardian Cryptic #29328 | 4 Down | 2024-03-12 flower