Crossword Genius

Insisted on confirmation from studio model (7)

Ross

I believe the answer is:

imposed

'insisted on' is the definition.
(to impose something is to insist on it)

I cannot understand how the remainder of the clue works.

(Other definitions for imposed that I've seen before include "enforced" , "Thrust oneself upon" , "set as a task" , "Forced to be accepted" .)

I've seen this clue in The Guardian.
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