Crossword Genius

Models of no standing (7)

Ross

I believe the answer is:

sitters

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

'models' is the definition.
(I know this)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for sitters that I've seen before include "Models" , "Easy catches" .)

I've seen this clue in The Globe and Mail.
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