Body parts defined by a number of professors? (7)
I believe the answer is:
tendons
'body parts' is the definition.
(tendon is a kind of body part)
'by a number of professors?' is the wordplay.
'by' is a charade indicator (letters next to each other).
'a number' becomes 'ten' (ten is a number).
'of professors?' becomes 'dons' (I can't explain this - if you can you should give a lot more credence to this answer).
'ten' next to 'dons' is 'TENDONS'.
'defined' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tendons that I've seen before include "They connect tissue to bone" , "they're able to articulate" , "Cords of tissue connecting muscle to bone" , "Tissues connecting muscles to bones" , "Tissues connecting muscle to bone" .)