Jack's treatment for warts? (5)
I believe the answer is:
straw
'jack's' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their base form.
Perhaps there's an association between them I don't understand?
'treatment for warts?' is the wordplay.
'treatment for' is an anagram indicator (I've seen this in other clues).
'warts' with letters rearranged gives 'STRAW'.
Can you help me to learn more?
(Other definitions for straw that I've seen before include "Warts (anag.)" , "Dried corn stalks" , "Disastrously, it may be the last" , "Plant fibre used as fodder" , "Animal bedding" .)