Software surprise (6,3)

I believe the answer is:

easter egg

(Other definitions for easter egg that I've seen before include "Edible seasonal symbol" , "Segregate into popular post-Lenten sweet" , "Springtime confection" , "DVD feature?" , "festive gift" .)

I've seen this clue in The Times, the King Feature Syndicate and The Sunday Times.

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.