Some advertising in field gets left out (7)
I believe the answer is:
leaflet
'some advertising' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'field gets left out' is the wordplay.
'field' becomes 'lea' (lea can mean a meadow or field of grass).
'gets' means one lot of letters goes inside another.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'left' with letters rearranged gives 'flet'.
'lea' placed inside 'flet' is 'LEAFLET'.
'in' is the link.
Can you help me to learn more?
(Other definitions for leaflet that I've seen before include "Advertising sheet" , "Printed handout" , "Sheet of paper giving information" , "Tract" , "Small pamphlet" .)