What does the cryptic crossword clue "Make another picture using red green or blue? (6)" mean?

The wordplay uses a charade (building blocks). RED (synonym="RED") + RAW (synonym="RAW") = REDRAW The answer is REDRAW.

Make another picture using red green or blue? (6)

Independent Cryptic #11650 | 3 Down | 2024-02-12 flower