What does the cryptic crossword clue "Fresh lemon is put on a pudding (8)" mean?

The definition is "pudding". The wordplay uses an anagram. anagram of LEMON + IS + A = SEMOLINA; definition: "pudding" The answer is Semolina.

Fresh lemon is put on a pudding (8)

Telegraph Prize Cryptic #3068 | 17 Down | 2020-08-09 flower