Yes when used as an intransitive verb a lot of other meanings are possible I guess: Spiralling at the edge of black hole. Spiralling out of control. Spiralli

Yes when used as an intransitive verb a lot of other meanings are possible I guess: Spiralling at the edge of black hole. Spiralling out of control. Spiralling incessantly. Transitive verb usage would be more restricted in what it can refer to.