Initially opposed unidentified Tory's extensive dalliances being made public knowledge (5)
I believe the answer is:
outed
'made public knowledge' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'initially opposed unidentified tory's extensive dalliances' is the wordplay.
'initially' indicates taking the first letters.
The first letters of 'opposed unidentified torys extensive dalliances' is 'OUTED'.
'being' acts as a link.
Can you help me to learn more?
(Other definitions for outed that I've seen before include "Exposed against one's will" , "Revealed the homosexuality of (someone)" , "Exposed in public" , "Revealed (someone) as gay" .)