Reader mightn’t stand this heat in the kitchen, perhaps? (9)
I believe the answer is:
potboiler
This clue could be a double definition.
'reader' is the first 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?
'mightn't stand this heat in the kitchen perhaps?' is the second definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
(Other definitions for potboiler that I've seen before include "Piece of writing done merely to make money, of no artistic value" , "Literary work of poor quality" , "likely to be steamy?" , "work to deliver bread fast" , "Book written just for the money" .)