Unite to get Christopher out of the way (4)
I believe the answer is:
knit
'unite' is the definition.
(I've seen this before)
'christopher out of the way' is the wordplay.
'christopher' becomes 'Kit' (short for Christopher).
'out of' is an insertion indicator (some letters on the outside of others).
'the way' becomes 'n' (Compass direction - North).
'kit' placed around 'n' is 'KNIT'.
'to get' is the link.
(Other definitions for knit that I've seen before include "Contract; intertwine" , "Tighten (eyebrows) in a frown; unite" , "tie" , "Interweave" , "Make something with wool and needles" .)