Joint missing odd bits of skin here (4)
I believe the answer is:
knee
'joint' is the definition.
(I know that knee is a type of joint)
'missing odd bits of skin here' is the wordplay.
'missing odd bits of' means one should take alternating letters (odd-numbered letters are removed).
'skin'+'here'='skinhere'
The alternating letters of 'skinhere' are 'KNEE'.
(Other definitions for knee that I've seen before include "Flexible joint" , "may present problem to maid" , "This is capped by the patella" , "Hinge joint" , "Wounded in Indian Wars action" .)