The most common and most likely answer to this crossword clue is the 4 plus 5 letter word FREE THROW
F
R
E
E
T
H
R
O
W
More clues leading to the result FREE THROW
Buddy explains!
The straight part
We know that "a charity shot" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a charity shot = free throw.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.