Extend leave (4,3)
I believe the answer is:
pull out
This clue could be a double definition.
'extend' is the first definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
'leave' is the second definition.
(I know that pull out is a more specific form of the action leave)
Can you help me to learn more?
(Other definitions for pull out that I've seen before include "Detachable section of a paper/magazine" , "Withdraw" , "withdrawal" , "Supplement, perhaps" , "leave by train?" .)