Possible Clues:

• Diminish
• 'Small measure for 14 downs, by the sound of it (8)'
• I'm one to make little of being in the mines
• Shrink is repressed by smaller version of self
• The little car is semi-twisted, but make the least of that
• Make the least of
• The least you can do with what I am is in the mine
• That is me under the little car, and that's the least you can make of it
• At least that's the way to make it
• Make a lesson this way?