A long poem in one pictorial (4)

I believe the answer is:

epic

'a long poem' is the definition.
(I've seen this before)

'in one pictorial' is the wordplay.
'in' indicates a hidden word.
'EPIC' is hidden within 'one pictorial'.

(Other definitions for epic that I've seen before include "Great movie" , "Heroic narrative verse" , "Large in scale" , "Blown up" , "blockbuster" .)

I've seen this clue in the Sydney Morning Herald.

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.