Caution entering covers of egregious texts (1-5)

I believe the answer is:

e-books

'texts' is the definition.

'caution entering covers of egregious' is the wordplay.
'caution' becomes 'book' (a footballer receiving a yellow card gets 'booked').
'entering' indicates putting letters inside.
'covers of' means to remove the middle letters.
'egregious' with its middle taken out is 'es'.
'book' put within 'es' is 'E-BOOKS'.

I've seen this clue in The Guardian.

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.