Boy with nets and lines (7)
I believe the answer is:
sonnets
'lines' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps they are linked in a way I don't understand?
'boy with nets' is the wordplay.
'boy' becomes 'son' (synonyms).
'with' says to put letters next to each other.
'son'+'nets'='SONNETS'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for sonnets that I've seen before include "Sent son to find short poems" , "Fourteen-line poems" , "verses" , "lifted poems" .)