I bought a beautiful Talbot’s leather purse at a thrift store. It is like new except a ball point pen apparently leaked leaving a big stain on the canvas lining. I can turn the lining out of the purse. My question is twofold… What will effectively remove the stain and will it clean the lining without damaging the leather? I am afraid that a cleaner would soak into the lining and wick through it to the leather.