Crossword Genius

On paper, a rubbish article? (4)

Ross

I believe the answer is:

rota

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'on paper' 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?

'a rubbish article?' is the wordplay.
'a rubbish' becomes 'rot' (both can mean nonsense).
'article?' becomes 'a' (the indefinite article in English).
'rot'+'a'='ROTA'

Can you help me to learn more?

(Other definitions for rota that I've seen before include "Register of names for duties" , "Work roster" , "supreme Catholic court" , "Roll call or roster" , "Task list, roster" .)

I've seen this clue in the Evening Standard.
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