Heating and Opening the End of a Glass Tube

This page is the CodyCross answer for the clue below from Working From Home, Group 1228, Puzzle 3 (Food Delivery).

Question is: Heating and Opening the End of a Glass Tube

and the answer is: FLARING

Word Meaning:

FLARING — Having a tendency of streaming, flapping, or spreading broadly as if within a current of air or in outer space.

Definitions from Wiktionary.