Something to do with a straw (4)
I believe the answer is:
suck
'straw' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their base form.
Perhaps you can see a link between them that I can't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for suck that I've seen before include "Use a straw" , "Pull on straw" , "be unpopular in the US" , "Draw up by mouth" , "Draw in by creating a vacuum" .)