Last season, Clarke scored nine times while assisting 12 goals in the Championship to help Sunderland reach the playoffs.
The 22-year-old has begun the new season in an impressive manner and on Wednesday he scored a brace against Blackburn Rovers to earn Sunderland three points.
Mowbray stated that Clarke is an outstanding player and hailed him as a maverick in his squad.
However, the Sunderland boss also added that he wants Clarke to understand that the Black Cats will not dominate every game to provide him with service and indicated that the player will need to adapt his game according to the team’s game plan.
“He is an outstanding footballer, amazing again tonight”, Mowbray told Sunderland’s media.
“He is a maverick, really, I think.
“Is that fair enough to say? But he does work hard.
“I just want him to understand how we need to play certain games.
“We are not just going to be the best team every game and dominate the ball and work it out to him and he can skip past somebody and we score.
“He had to work really hard because they were hurting us with the ball for the first half an hour.
“They were really good and we needed eleven bodies grafting, working and chasing, not ten and Jack stood out there on the left wing.
“I thought he was amazing in the second half and a real threat and that is why I thought we could have scored more goals.”
Clarke has scored five times this season in seven appearances for the club so far and he will be determined to help Sunderland earn promotion this season.
