Despite taking the lead via Stuart Sinclair's second goal of the season, the Saddlers slumped to a second defeat in just over a week as Joe Widdowson, Matt Harrold, and Conor Wilkinson scored to secure all three points.
A visibly disappointed Clarke admitted that the performance wasn't good enough as his side failed to build upon their first-half momentum as they conceded three goals for a second game in a row.