Crossword Genius

Put it on without being told? (6)

Ross

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6

7

assume

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'put' is the definition.
The definition and answer can be both related to thinking as well as being verbs in their base form.
Perhaps there's an association between them I don't understand?

I can't explain the remainder of the clue.

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(Other definitions for assume that I've seen before include "Take as true or take for granted" , "Take (control)" , "Take for granted, suppose" , "Take as read" , "Guess" .)

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