Some seen kerb-crawling around joint (4)
I believe the answer is:
knee
'joint' is the definition.
(knee joint is a kind of joint)
'some seen kerb-crawling around' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'around' is a reversal indicator.
'eenk' is hidden in the letters of 'seen kerb crawling'.
'eenk' in reverse letter order is 'KNEE'.
(Other definitions for knee that I've seen before include "One bent in genuflection" , "middle part of leg" , "may present problem to maid" , "for going on begging" , "Human joint" .)