Crossword Genius

Overworked boss at Shoreditch paper? (9)

Ross

I believe the answer is:

hackneyed

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

'overworked' is the definition.
(I've seen this before)

'boss at shoreditch paper?' is the wordplay.
I cannot quite understand how this works, but
'boss' could be 'ed' (short for editor - newspaper boss) and 'ed' is found in the answer.
The remaining letters 'hackney' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for hackneyed that I've seen before include "Overfamiliar through overuse" , "stock" , "Overworked" , "pedestrian" , "using familiar phraseology?" .)

I've seen this clue in The Sun.
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