The boss, who has added sixteen players to his squad over the summer, had been confident of adding a wideman only for the deal to fall through leaving the manager a little short until January.
But Clarke, who was able to add Salford City striker Rory Gaffney to his squad last weekend, remains upbeat after a window which saw him undertake an overhaul he claims was the biggest in the EFL.
Speaking via the Express & Star, Darrell said; "We had the largest turnover in the league and we are not going to lose sleep we did not quite get the last one over the line.
"I’m pleased with the people we have got in the building. It has an adaptability to it, the right mix of hunger and experience. Now we have to make them better players."
Despite adding Elijah Adebayo and Caolan Lavery - and now Gaffney - to play alongside Josh Gordon the Saddlers have scored just three goals in their opening six League Two fixtures and boosting his attacking options had become Clarke’s chief focus during the final weeks of the window.
Despite failing to land his target on Deadline Day the gaffer remains determined not to bring a player in just for the sake of it, admitting that he's happy to be without the distraction of the Transfer Window.
Darrell continued; "It was a little bit frustrating. I wanted to bring a wide player in and I thought I was pretty close to bringing one in. I’m not going to go into details.
"All I will say, is there is no point panicking when you miss your two or three potential targets and end up pulling in someone you don’t want.
"I didn’t want to work with another development player, I wanted something different but it didn’t quite come through. I am working with a 24-man first team squad. We have to settle things down now.
"We will set about now doing what we are paid to do, which is make players better. We have a good few months until the madhouse starts again."