Related Clues:

• It's normal for a geometry teacher to be upright
• Upright piano, with arrangement of a prelude in C, right?
• Like a straight line at right angles to another line
• Not the architectural style of the Pisa tower?
• Vertical; upright
• Newly fitted up pad with recliner -- in which one won't be this!
• Erect a mobile up in cradle
• In Cup red player, yard away, smashed upright
• Like rook moves, perhaps, what’s odd about king and pawn finish after I moved?