The cow’s tail remained wrenched (7)
I believe the answer is:
wrested
'wrenched' is the definition.
The answer and definition can be both to do with contact as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'the cow's tail remained' is the wordplay.
'tail' indicates one should take the final letters.
'remained' becomes 'rested' ('rest' can be a synonym of 'remain').
The final letter of 'cow' is 'w'.
'w'+'rested'='WRESTED'
Can you help me to learn more?
(Other definitions for wrested that I've seen before include "seized" , "Snatched" .)