The Blues on Monday re-signed McClement to a multi-year contract. Financial terms were not disclosed.
McClement, 23, registered six goals and 21 assists in 67 games this past season. He recorded a career-high three points in a 5-4 victory over Edmonton on Feb. 12.
"We are counting on Jay to take his game to another level this season as he should get more ice time in all situations," Blues president John Davidson said.
The Blues also announced that defensemen Eric Brewer, Doug Lynch, Aaron MacKenzie, Tomas Mojzis, Jon DiSalvatore and Jeff Woywitka, goaltender Jason Bacashihua and left winger Peter Sejna have accepted their qualifying offers.