Envisage holding document (4)

I believe the answer is:

visa

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

'envisage holding' is the wordplay.
'holding' says the answer is hidden in the clue.
'VISA' is hidden within 'envisage'.

(Other definitions for visa that I've seen before include "Mark on passport" , "Travel permit stamped in passport etc" , "Stamp affixed to passport as permission to enter country" , "Travel stamp in passport" , "Travel pass" .)

I've seen this clue in The Mirror.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.