What does the cryptic crossword clue "Writing very quickly? Hey! Song part needs a rewrite! (11)" mean?

The wordplay uses an anagram. anagram of HEY! + SONG + PART = STENOGRAPHY The answer is STENOGRAPHY.

Writing very quickly? Hey! Song part needs a rewrite! (11)

Independent Cryptic #11995 | 8 Down | 2025-03-20 flower