Done her level best - Idioms by The Free Dictionary
do (one's) level best (redirected from done her level best)
do (one's) level best
To do as well as one can at something. I'm just not good at math, so, believe me, a B- in Algebra means that I've done my level best. No, you're not the star player on the team, but you always do your level best, which encourages the rest of us to do the same.
do your level best
COMMON If you do your level best to do something, you try as hard as you can to do it. The President told American troops that he would do his level best to bring them home soon. They're doing their level best to answer all the questions that people have.
do your level best do your utmost; make all possible efforts.
do/try your level ˈbest (to do something) try as hard as you can: I’ll do my level best to be there by ten o’clock, but I can’t promise anything.
References in periodicals archive
'Secretary Teo also says that she is honored and privileged to have served as Secretary of Tourism under the Duterte Administration, where she has done her level best
to discharge her duty to promote tourism both domestically and internationally,' Topacio said.
At the time she stood down, then-IJF chairman Lord Oaksey said: "Serena has been confronted by just about every conceivable racing problem, and with sympathy and understanding gained from a lifetime in the sport, she has done her level best
to solve them.