Kelly Clarkson and her ex-husband Brandon Blackstock have settled their lawsuit. The former couple were locked in a legal battle after the 42-year-old singer filed a cross-complaint against her ex in March that sought to affirm or expand the $2.6 million award the California Labor Commission granted her last year, after it was found the 47-year-old producer had charged her for business deals he wasn’t licensed to seek. The previous judgement only covered the period up to 2017, and in documents filed two months ago, Kelly was seeking an order that would require the return of “any and all commis…