A watched pot is never this, 5 letters
Bubbling and steaming, 5 letters
Bubbling in the pot, 5 letters
Bubbling on the burner, 5 letters
Bubbling on the range, 5 letters
Bubbling on the stove, 5 letters
Bubbling, as hot water, 5 letters
Bubbling, like hot water, 5 letters
Buzzing with excitement, 5 letters
Buzzing, as with excitement, 5 letters
Come to ___ (begin bubbling), 5 letters
In a state of excited activity, 5 letters
In a tumultuous state, 5 letters
In an excited state, 5 letters
Like 212 degrees water, 5 letters
Like a commodities pit, 5 letters
Like a whistling teakettle, 5 letters
Like an unwatched pot?, 5 letters
Like really hot water, 5 letters
Like some pots on the stove, 5 letters
Like water ready for pasta, 5 letters
More than simmering, 5 letters
Not merely simmering, 5 letters
Obviously hot on the range, 5 letters
Ready for cooking spaghetti, 5 letters
Ready for pasta, say, 5 letters
Seething, stirred up, 5 letters
Spaghetti-ready, as water, 5 letters
Tea-ready, as water, 5 letters