The most common and most likely answer to this crossword clue is the 11 letter word NOSTRADAMUS
I've seen this crossword clue in The Times
N
O
S
T
R
A
D
A
M
U
S
More clues leading to the result NOSTRADAMUS
- Misbehaving Roman stud, as prophet
- Seer rejecting crazy schemes — common sense deployed about this
- Visionary shows wit, keeping up outrageous skills
- Prophet displaying talent that includes reverse of crazy skills
- Making a comeback in Hilversum, a darts one-time visionary legend
- Rising star sheltering the troubled matadors with the French astrologer
- Prophet using common sense about crazy paintings surrealist initially put up
Buddy explains!
The straight part
We know that "Visionary" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case visionary = nostradamus.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.