The most common and most likely answer to this crossword clue is the 6 letter word REDRAW
I've seen this crossword clue in Financial Times
R
E
D
R
A
W
More clues leading to the result REDRAW
- Ruddy green used in sketch again!
- Once more depict turning of screw
- Plan once more presented in colour
- Once more represent retiring prison officer
- Prison officer coming back to pick another ticket
- This plan again upset prison guard
- Design again seen to be bloody crude
- Amend sketch showing two features of skin abrasion?
- Perhaps Titian nude for sketch again
- Possibly Titian nude in sketch again
Buddy explains!

The straight part
We know that "Plan once more" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case plan once more = redraw.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does REDRAW mean?
REDRAW noun- An update to the screen display.
- To draw again.