The most common and most likely answer to this crossword clue is the 7 letter word CUNNING
I've seen this crossword clue in The Daily Telegraph
C
U
N
N
I
N
G
More clues leading to the result CUNNING
Buddy explains!
The straight part
We know that "Clever" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case clever = cunning.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 CUNNING mean?
CUNNING adjective- Sly; crafty; clever in surreptitious behaviour.
- Skillful, artful.
- Wrought with, or exhibiting, skill or ingenuity; ingenious.
- Cute, appealing.
- Practical knowledge or experience; aptitude in performance; skill, proficiency; dexterity.
- Practical skill employed in a secret or crafty manner; craft; artifice; skillful deceit; art or magic.
- The disposition to employ one's skill in an artful manner; craftiness; guile; artifice; skill of being cunning, sly, conniving, or deceitful.
- The natural wit or instincts of an animal.
- Knowledge; learning; special knowledge (sometimes implying occult or magical knowledge).