Lunch bag item that might hold soup (7)

I believe the answer is:

thermos

(Other definitions for thermos that I've seen before include "Container to retain heat" , "Vacuum flask for mothers" , "Flask trade mark" , "Heat-retaining flask for mothers" .)

I've seen this clue in the USA Today.

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.