Business trip necessity, often (6)

I believe the answer is:

laptop

(Other definitions for laptop that I've seen before include "Portable computer" , "device?" , "Type of computer" , "Small computer" , "Some work on this" .)

I've seen this clue in The Wall Street Journal.

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.