What does the cryptic crossword clue "Spoils actions meant to rectify (12)" mean?

The wordplay uses an anagram. anagram of ACTIONSMEANT ("actions meant") [anagram: "rectify"] = CONTAMINATES The answer is CONTAMINATES.

Spoils actions meant to rectify (12)

Guardian Cryptic #25215 | 14 Across | 2011-01-10 flower