What does the cryptic crossword clue "Break two top rules with this rapid visit (7,4,4)" mean?

The wordplay uses an anagram. anagram of TWO + TOP + RULES + THIS = WHISTLESTOPTOUR The answer is WHISTLESTOPTOUR.

Break two top rules with this rapid visit (7,4,4)

Daily Mail Cryptic #17115 | 6 Down | 2023-06-08 flower