Is TUSKS a Wordle Word?

Yes. TUSKS is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

Plurals ending in S are almost never chosen as Wordle answers.

What does TUSKS mean?

One of a pair of elongated pointed teeth that extend outside the mouth of an animal such as walrus, elephant or wild boar.“Until the CITES sales ban, elephant tusks were the 'backbone' of the legal ivory trade.”
A small projection on a (tusk) tenon.
A tusk shell.

3 more noun definitions

A projecting member like a tenon, and serving the same or a similar purpose, but composed of several steps, or offsets, called teeth.
A sharp point.
The share of a plough.

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: WeakIn the top 92% of all valid Wordle words for testing common letters.
Vowels: U
Unique letters: 4 of 5Repeats S
Common letters: T

Hard-mode trap: 9 valid words fit the pattern _USKS. If you reach it, you may need several guesses to find the last letter.

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.