One paid companion to go over large submission (8)
I believe the answer is:
proposal
'submission' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'one paid companion to go over large' is the wordplay.
'one paid' becomes 'pro' (I've seen this in other clues).
'companion' becomes 'pal' (I've seen this in another clue).
'to go over' means one lot of letters goes inside another.
'large' becomes 'os' (abbreviation for oversize).
'pal' going around 'os' is 'posal'.
'pro'+'posal'='PROPOSAL'
Can you help me to learn more?
(Other definitions for proposal that I've seen before include "Offer, of marriage say" , "Suggestion put forward for consideration" , "Kind of offer, perhaps of marriage" , "put before the union?" , "motion" .)