The most common and most likely answer to this crossword clue is the 11 plus 4 letter word GRASSHOPPER MIND
I've seen this crossword clue in The Daily Telegraph
G
R
A
S
S
H
O
P
P
E
R
M
I
N
D
More clues leading to the result GRASSHOPPER MIND
- Rat to watch on grain container, one flitting about
- Reason for lack of concentration associated with something like cricket
- Object to cricket? The reverse — it shows limited focus
- Lack of concentration and hard work when customer with money enters
- Sing with care around actor? One shows little concentration
Buddy explains!
The straight part
We know that "it shows limited focus" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it shows limited focus = grasshopper mind.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.