"If the item is used and has a flaw, once you select "Used" from the drop-down list, you should then be able to type in the blank field whatever you need to regarding the condition. (image attached). "

You have understood exactly what I meant - thank you!!  

After I select "Used" a field opens which says "Used: An item that has been previously used etc"  and it is here that I want to insert the statement, but no blank field opens up and I cannot work out how to get the field blank!!  I have tried deleting the text that is there which does not work but I cannot find a blank field as pictured in your image.