Aim under canvas? (6)

I believe the answer is:

intent

I believe this clue is a double definition.

'aim' is the first definition.
(I know that aim can be written as intent)

'under canvas?' is the second definition.
(I've seen this in other clues)

(Other definitions for intent that I've seen before include "Committed" , "'Purpose, aim (6)'" , "Objective" , "Focused" , "Purpose, design" .)

I've seen this clue in The Sun.

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