What does the cryptic crossword clue "Few if hot changed into greyish colour (3,5)" mean?

The definition is "colour". The wordplay uses an anagram. anagram of FEW + IF + HOT = OFFWHITE; definition: "colour" The answer is OFFWHITE.

Few if hot changed into greyish colour (3,5)

Daily Mail Cryptic #17612 | 20 Across | 2025-05-06 flower