The most common and most likely answer to this crossword clue is the 8 letter word SHINBONE
I've seen this crossword clue in The Guardian
S
H
I
N
B
O
N
E
More clues leading to the result SHINBONE
- Quiet popular bishop, one that supports member
- Perform well, holding head up, in part of leg
- Body part in rubbish bin — and what setter did about it?
- Element of gash in boner – you wouldn’t want to be kicked there
- Part of Man in Black stood out, as a collector
- Gloss covering first of bandages on part of leg
- Skeletal part radiated light around Irish nurse's body initially
Buddy explains!

The straight part
We know that "Body part" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case body part = shinbone.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 SHINBONE mean?
SHINBONE noun- The inner and usually the larger of the two bones of the leg or hind limb below the knee
- A segment of an insect's leg.