Showing skill can be demonstrated in a variety of ways, such as being ABLE to do something with ease and proficiency, which is represented by the 4-letter solution 'ABLE'. It can also be expressed through having the capacity to do something well, which is represented by the 4-letter solution 'ABLY'. Lastly, it can be expressed through being clever or cunning, which is represented by the 6-letter solution 'ARTFUL'.