Use the full model name, iron number and release generation. Match the shaft label, flex, length and any lie-colour code. A photograph of the missing position beside the remaining irons can help confirm the correct version.
No. Loft, length, shaft and head construction vary widely. One brand’s 7 iron can fly as far as another brand’s 6 iron. The replacement should match the expected carry and build, not only the number.
Yes, provided the loft progression, shaft weight and head profile create a smooth transition. Combination sets often use a forgiving long iron and a more compact scoring iron, but the changeover must not create duplicate or missing distances.
Many irons can be adjusted slightly for loft and lie, although safe limits depend on the head material and condition. Forged heads generally allow more movement than some cast designs. A club professional should assess the specific head before bending.
Small surface dings and marks are usually cosmetic. They are common where iron heads contact one another in the bag.
A hybrid, higher-lofted fairway wood or utility iron can fill the carry gap with easier launch. Choose the alternative by distance and flight rather than trying to match the missing club number.