What does the cryptic crossword clue "Time off - tie went off (3-7)" mean?

The wordplay uses an anagram. anagram of OFFTIEWENT ("off - tie went") [anagram: "off"] = TWOFIFTEEN The answer is TWOFIFTEEN.

Time off - tie went off (3-7)

Guardian Cryptic #22586 | 11 Across | 2002-07-31 flower