What does the cryptic crossword clue "Mathematician from Swiss city university flipping unwell (9)" mean?

This cryptic clue uses wordplay to arrive at the answer. Visit the page for progressive hints — definition, wordplay type, and a full step-by-step explanation.

Mathematician from Swiss city university flipping unwell (9)

Independent Cryptic #12234 | 10 Down | 2025-12-24 flower

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