The most common and most likely answer to this crossword clue is the 8 letter word DROPSHOT
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More clues leading to the result DROPSHOT
Buddy explains!

The straight part
We know that "Murray speciality" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case murray speciality = dropshot.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 DROPSHOT mean?
DROPSHOT noun- In sports such as badminton, squash, tennis and volleyball, a lightly-struck shot that just lands into play.
- In first-person shooters, the act of quickly switching from a standing position to a prone position while shooting at an opponent.