Related Clues:

• Signal to raise hat to old mathematician
• I used to think soldiers in a group fail to get on
• Children manipulate this, said an American philosopher
• He finds fault in fancy nicknames
• I clued, anagrammatically, a mathematician
• Old dramatist organises school's PE
• I thought out a plot
• Totaliser beaten by great logician
• Uncomplaining disciple
• Silly clue I had for geometry master
• Philosopher in spring ringing ChildLine?
• Oscar set puzzle for philosopher
• Philosopher tries a lot when in trouble
• Hardened soul starts to call your name, if confronted
• Prompter upset by cover for mathematician