What does the cryptic crossword clue "Catastrophe is suppressed by corrupt trades (8)" mean?

The definition is "Catastrophe". The wordplay uses an anagram. anagram of IS + TRADES = DISASTER; definition: "Catastrophe" The answer is DISASTER.

Catastrophe is suppressed by corrupt trades (8)

Daily Mail Cryptic #17496 | 21 Across | 2024-11-25 flower