Intercept and separate (3,3)
I believe the answer is:
cut off
This clue is a double definition.
'intercept' is the first definition.
(cutting off is a kind of intercepting)
'separate' is the second definition.
(thesaurus)
'and' acts as a link.
(Other definitions for cut off that I've seen before include "Isolate(d)" , "stop working" , "Sever, prevent from continuing" , "Block" , "Severed- without a penny?" .)