Harriers started the second half with a big task on their hands against promotion chasing opponents who were looking an impressive, powerful unit.
Clarkson was booked on 55 minutes for a badly mistimed tackle. Ian Clarkson
Harriers boss Molby made a double substitution on 56 minutes in a bid to get back into the game.
Midfielders Bennett and Skovbjerg replaced Durnin and Corbett.
Beckett plodded a shot over the bar on 59 minutes after latching on to Ebdon's smart header from Richardson's long cross.
Chesterfield's lack of a final pass or shot was often letting Harriers off the hook.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article