What does the cryptic crossword clue "He does often say this must be ordered eventually (3,2,5,4)" mean?

The wordplay uses an anagram. anagram of HE + DOES + OFTEN + SAY = ONEOFTHESEDAYS The answer is ONEOFTHESEDAYS.

He does often say this must be ordered eventually (3,2,5,4)

Daily Mail Cryptic #16743 | 8 Down | 2022-01-04 flower