Referring to Kitty, put plant in new container (5)
I believe the answer is:
repot
'plant in new container' is the 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?
'referring to kitty' is the wordplay.
'referring to' becomes 're' ('re' means regarding or about).
'kitty' becomes 'pot' (both can mean a shared fund).
're'+'pot'='REPOT'
'put' is the link.
Can you help me to learn more?
(Other definitions for repot that I've seen before include "Transplant" , "plant in another location" , "Give room to expand" , "transfer seedlings" , "place somewhere new to put down roots" .)