What does the cryptic crossword clue "Push aside cakes, passed to the left (4)" mean?

The definition is "Push aside". The wordplay uses a reversal. reverse of BUNS = SNUB; definition: "Push aside" The answer is Snub.

Push aside cakes, passed to the left (4)

Telegraph Prize Cryptic #3057 | 19 Across | 2020-05-24 flower