The most common and most likely answer to this crossword clue is the 6 plus 6 letter word TUNNEL VISION
I've seen this crossword clue in The Times
T
U
N
N
E
L
V
I
S
I
O
N
More clues leading to the result TUNNEL VISION
- Singlemindedness of concept for The French Connection?
- Ability to focus until venison is cooked
- Voltaire’s article encapsulated by novelist in surprisingly prejudiced outlook
- Single-minded concentration that Tube driver needs?
- Single-mindedness of worried vet on insulin
- & 4a Stunner seen on Eurostar maybe engenders unwavering concentration?
Buddy explains!
The straight part
We know that "Singlemindedness of concept" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case singlemindedness of concept = tunnel vision.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.