Minister plugging domestic work record (9)
I believe the answer is:
directory
'work record' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'minister plugging domestic' is the wordplay.
'minister' becomes 'rector' (synonyms).
'plugging' means one lot of letters goes inside another (I've seen this in other clues).
'domestic' becomes 'diy' (I can't explain this - if you can you should believe this answer much more).
'rector' going within 'diy' is 'DIRECTORY'.
Can you help me to learn more?
(Other definitions for directory that I've seen before include "No longer 192 in Britain" , "See 7" , "Reference book" , "list of contacts" , "Catalogue" .)