The former Wolves striker, sent to Boundary Park to get first-team opportunities and sharpen up on his fitness, is set to be on the bench when Wednesday travel to Cardiff City this weekend.
Clarke scored three goals in five games for The Latics and helped John Sheridan's men consolidate their position in the League One play-offs.
Wednesday signed Clarke from Wolves in the January transfer window but the big striker has failed to impress so far while at Hillsborough.
Meanwhile, Iain Turner has won the club's player-of-the-month award.