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.
Maybe there's an association between them I don't understand?
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" .)