Myhill kept a cleansheet for victory over Crystal Palace.
"Boaz made a couple of really good saves on Saturday," Clarke told the WBA website.
"Even last season, Ben knew he had to work hard and be on top of his game because Boaz is an accomplished international goalkeeper.
"He's shown that since we lost Ben in the second game of the season and defensively we've been strong and solid.
"To achieve that, you need to have a good goalkeeper.
"With the exception of the game at Liverpool, when some of their finishing was sublime, I think Boaz can be really pleased with his contribution this year."
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