Possible Clues:

• A team with a learner on the centre line
• Relating to a fixed reference line
• Lengthwise
• Kind of 3-D symmetry
• Raises one in casual area in relation to Central Line
• Eleven getting away in Alabama located along a central line
• Article with loose rotating rings one connected with pivot
• Equatorial's opposite
• Forming a line of symmetry
• Like some skeletons