THERMOSFLASK

It keeps drinks hot or cold (7,5)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,575 — 2023-06-20 23:00:46
  3D: It'll keep your drink hot (or cold) (7,5)
• Quick crossword No 16,026 — 2021-09-16 23:00:28
  24A: It keeps drinks hot or cold (7,5)