Weight put on (4)
I believe the answer is:
load
This clue might be a double definition.
'weight' is the first definition.
(load is a kind of weight)
'put on' is the second definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for load that I've seen before include "Weight to be transported" , "Charge a gun" , "Amount" , "A heavy burden" , "that's put on commercial vehicle" .)