Has Jack a treatment for warts? (5)
I believe the answer is:
straw
'has jack' 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 a link between them I don't understand?
'a treatment for warts?' is the wordplay.
'a treatment for' indicates an anagram (I've seen this in other clues).
'warts' is an anagram of 'STRAW'.
Can you help me to learn more?
(Other definitions for straw that I've seen before include "Dried stalks; yellow" , "Stalk of dry grass" , "Residue of threshed corn" , "Animal bedding" , "The last one broke the camel's back" .)