Duped about getting a junction filled in (7)
I believe the answer is:
updated
'filled in' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Maybe there's an association between them I don't understand?
'duped about getting a junction' is the wordplay.
'about' indicates anagramming the letters.
'getting' is an insertion indicator.
'junction' becomes 't'.
'duped' with letters rearranged gives 'upded'.
'a'+'t'='at'
'upded' enclosing 'at' is 'UPDATED'.
Can you help me to learn more?
(Other definitions for updated that I've seen before include "Dude apt to be made current" , "Made something more modern" , "revised" , "Brought to current level of completeness" , "Brought to current status" .)