Like the proverbial beaver

EAGER

Think of how someone might describe a person who's always ready to jump into work with enthusiasm, much like a certain hardworking rodent.

The phrase "the proverbial beaver" refers to the common saying about beavers being hardworking or enthusiastic. Since beavers are known for their tireless building, "like the proverbial beaver" hints at someone who’s keen or industrious. That’s why the answer is "EAGER," matching the idea of being enthusiastic or ready to act. It’s a straightforward metaphor without hidden wordplay.