What does the cryptic crossword clue "Mere flour's spilt and in a sorry state? (10)" mean?

The wordplay uses an anagram. anagram of MERE + FLOUR'S = REMORSEFUL The answer is REMORSEFUL.

Mere flour's spilt and in a sorry state? (10)

Daily Mail Cryptic #17573 | 23 Across | 2025-03-12 flower