Em,
You will find that there are no irons in any cabins on any cruiseline as they are considered a safety hazard. Some ships have self-service laundry rooms where ironing boards and irons are available, but I don't know if the Wind has one or not.
Nancy
The Dawn and Jewel have self service laundrymats, with ironing boards and irons. What makes these rooms safer is that these rooms also have more fire suppression equipment than ordinary cabins, just like the ship laundrys.
Use a traveling steamer, or non static sprays to get the wrinkles out of your clothes.