What does the cryptic crossword clue "One reeks after spilling light-coloured oil (8)" mean?

The definition is "oil". The wordplay uses an anagram. anagram of ONE + REEKS = KEROSENE; definition: "oil" The answer is KEROSENE.

One reeks after spilling light-coloured oil (8)

Daily Mail Cryptic #16993 | 11 Across | 2022-12-20 flower