Here are some common ways to spell it:
* Click: This is the most basic and straightforward option.
* Tsk: This spelling is often used to represent a specific type of tongue click used to express disapproval or irritation.
* Tch: This spelling is similar to "tsk" and can also indicate disapproval or irritation.
* Clack: This spelling implies a sharper, more forceful click.
* Click-clack: This spelling emphasizes the repetition of the clicking sound.
Ultimately, the best way to spell the tongue-clicking noise depends on the context and the specific sound you want to represent.