Elbows are of course the joint halfway down our arms which allow them to bend. They're very useful to writers!
A piece of piping shaped into a right angle, or any similarly shaped bend or corner can be known as an elbow bend or elbow joint.
If you jostle your way through a crowd then you can be said to be elbowing your way into a space, and those displaced in this manner are elbowed out. Once you have sufficient space around you, you'll have plenty of elbow room.
If you give something elbow grease, you've put effort into it. Giving a person the elbow is to dump them. Being out at the elbows (either a person or item of clothing) means to be tired or ragged.
Find yourself some elbow room, apply creativity and elbow room and enter this free poetry competition. If you win the £100 prize you'll be able to replace something you own which is out at the elbows. You'll also have your work published and illustrated and will receive a copy of the book.