Used fine stone for the house on the end, possibly (5)
I believe the answer is:
honed
'used fine stone for' is the definition.
The answer and definition can be both to do with contact as well as being past participle verbs.
Perhaps there's an association between them I don't understand?
'house on the end possibly' is the wordplay.
'house' becomes 'ho' (abbreviation for house).
'on' indicates putting letters inside.
'possibly' indicates an anagram.
'end' with letters rearranged gives 'ned'.
'ho' inserted into 'ned' is 'HONED'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for honed that I've seen before include "Refined" , "Sharpened with a stone" , "Perfected" .)