Three kings returned in lead-up to Easter with a bone connector (8)
I believe the answer is:
ligament
'a bone connector' is the definition.
(I've seen this in another clue)
'three kings returned in lead-up to easter' is the wordplay.
'three kings' becomes 'magi' (I've seen this in another clue).
'returned' is a reversal indicator.
'in' indicates putting letters inside.
'lead-up to easter' becomes 'lent' (I am not sure about this - if you are sure you should believe this answer much more).
'magi' written backwards gives 'igam'.
'igam' placed within 'lent' is 'LIGAMENT'.
'with' is the link.
Can you help me to learn more?
(Other definitions for ligament that I've seen before include "Joint connector" , "Band of tissue joining bones" , "it's the physical bond" , "Tissue which joins bones" , "What may get torn" .)