What does the cryptic crossword clue "Face fine for reproducing stimulant (8)" mean?

The definition is "stimulant". The wordplay uses an anagram. anagram of FACE + FINE = CAFFEINE; definition: "stimulant" The answer is CAFFEINE.

Face fine for reproducing stimulant (8)

Daily Mail Cryptic #17577 | 4 Down | 2025-03-18 flower