The most common and most likely answer to this crossword clue is the 4 plus 2 plus 6 plus 3 letter word BACK TO SQUARE ONE
I've seen this crossword clue in Financial Times
B
A
C
K
T
O
S
Q
U
A
R
E
O
N
E
More clues leading to the result BACK TO SQUARE ONE
- Comment on resuming entering this answer?
- I see Tessa is at the drawing board again!
- Try again – that’s the opposite of how this answer goes!
- Exasperated compiler’s utterance: ‘Start again!’
- Support old-fashioned soul about to start again
- Recooks a banquet freshly for a new start
- Returned to pay individual, making fresh start
- Returning to original problem like an unsuccessful solver?
- Start afresh once baker’s quota has been distributed
- It means starting again – here in the north-west?
Buddy explains!
The straight part
We know that "at the drawing board again" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case at the drawing board again = back to square one.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.