Related Clues:

• Centre, halfway
• Vital part of a matter, decisive point
• It takes ages to be 6 down
• There's no end of it when it's so long about the divine
• Sent 'er a long way round the divine
• An idle M.D., but only to medium extent
• Me? I had five-fifty inside the centre
• See 1
• A decisive point made by criminals in speech
• Tolkien setting the converse of 4?
• 18's heart needing 20 hearts
• Vital point in game between numbers of Romans
• Heart must have died - once more - within a mile
• Location of curl in morally extreme girl of conventional tastes
• Central one of 28