Crossword Genius

Easy reading range? (9)

Ross

I believe the answer is:

potboiler

I'm a little stuck... Click here to teach me more about this clue!

This clue could be a double definition.

'easy reading' is the first definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'range?' is the second definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.

Can you help me to learn more?

(Other definitions for potboiler that I've seen before include "Poor novel" , "Money-making book" , "Book written just for the money" , "Literary work of poor quality" , "Nice little earner" .)

I've seen this clue in the Sydney Morning Herald.
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