What does the cryptic crossword clue "Dose of vitamin C arrives for the driver (5)" mean?

The definition is "for the driver". The wordplay uses a hidden word. IN-CAR ( hidden word in [dose of] VITAM IN C AR RIVES ) The answer is INCAR.

Dose of vitamin C arrives for the driver (5)

Independent Cryptic #11695 | 7 Down | 2024-04-04 flower