The phrase "anxious to use" is correct and usable in written English.
It can be used when expressing eagerness or a strong desire to utilize something.
Example: "She was anxious to use her new camera during the trip."
Alternatives: "eager to use" or "keen to use".
I don't believe the president is anxious to use death to advance an agenda".
I was very anxious to use the advantage I had, which was free lodgings from my folks, to save up.
Ken Loach: After we found the school in which we wanted to film [Edward Sheerin School in Attersley], we were anxious to use kids in their natural environment.
The Chargers seem anxious to use more three-receiver looks, which is in line with how the rest of the N.F.L. is evolving.
"As many injuries as we had, we always felt that somehow, we could do it against them," MacCulloch said before a game that Byron Scott was anxious to use as a measuring stick.
Mr. Morsi also seemed anxious to use the reshuffle to dampen some criticism of his cabinet, which was seated last week, for its lack of inclusiveness and imagination, relying as it did on longtime state employees.
Chancellor Merkel is a well-meaning woman, who is desperately anxious not to use Germanys undoubted economic power for political purposes and thus invite odious comparisons with the past.
One of the simplest, most powerful things your child can do when he or she is anxious is to use a checklist, or what I like to call a "Chill List". Every child's Chill List might be different, based on the techniques that work for him or her.
While he was on the pitch Arsenal simply could not get the ball; and when they did, so anxious were they to use it to good effect, they quickly lost it.
They've been wildly successful; packed with hundreds of brainbox MIT students from many disciplines anxious learn how to use advanced machines to make things for themselves.
And when I get anxious I have to use the bathroom.
