The most common and most likely answer to this crossword clue is the 6 plus 9 letter word ANNIKA SORENSTAM
A
N
N
I
K
A
S
O
R
E
N
S
T
A
M
Buddy explains!

The straight part
We know that "golfing great" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case golfing great = annika sorenstam.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.