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' indicates putting letters inside (some letters on the outside of others).
'the way' becomes 'n' (Compass direction - North).
'kit' enclosing 'n' is 'KNIT'.
'to get' acts as a 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" .)