The most common and most likely answer to this crossword clue is the 10 letter word NO-BRAINER
I've seen this crossword clue in Financial Times
N
O
-
B
R
A
I
N
E
R
More clues leading to the result NO-BRAINER
- Trivial problem to fall between aristocrat and monarch
- Simple question number one hitting you on the head
- ‘Bust down reason’: dead short, easy clue?
- Head coach wasting time with something requiring little mental effort
- It’s easy to see robin near ground
- New airborne manoeuvre that doesn’t need much thought
- Wealthy figure, artist, at home with Charles’ mother – it entails minimal effort!
- VIP overseeing one showering? It’s not worth thinking about
- Is he stupid? It’s simple
- Head above dark cloud, perhaps, that requires little thought
Buddy explains!
The straight part
We know that "It’s not worth thinking about" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it’s not worth thinking about = no-brainer.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 NO-BRAINER mean?
NO-BRAINER noun- An easy or obvious conclusion, decision, solution, task, etc.; something requiring little or no thought.