The most common and most likely answer to this crossword clue is the 9 letter word CRICKETER
I've seen this crossword clue in The Times
C
R
I
C
K
E
T
E
R
More clues leading to the result CRICKETER
- Scientist taking a very long time, not half — one getting stumped?
- Sportsman? Chirpy type meeting Her Majesty
- Bat, maybe, showing hesitation to pursue insect
- Point one may be at, where 5’4″ ruler applied to six footer
- Biologist atop swaying tree — one may be out on the field
- Stein in Crete whisked up batter?
- One striking on the square?
- Player gets caught by mistake, on the second half of over
- An insect showing hesitation – Roach, possibly
Buddy explains!

The straight part
We know that "one getting stumped?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one getting stumped? = cricketer.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 CRICKETER mean?
CRICKETER noun- A person who plays cricket.