The most common and most likely answer to this crossword clue is the 8 letter word AMPUTATE
A
M
P
U
T
A
T
E
Buddy explains!
The straight part
We know that "Take off a member" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case take off a member = amputate.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 AMPUTATE mean?
AMPUTATE verb- To surgically remove a part of the body, especially a limb