Come away (6)
I believe the answer is:
detach
'come away' is the definition.
(I know that come away can be written as detach)
This is the entire clue.
(Other definitions for detach that I've seen before include "Remove from contact" , "Take away -- the cad (anag)" , "Disengage, unfasten" , "Split off" , "Disengage (something) and remove it" .)