Possible Clues:

• Effective make-up in jar
• Mighty
• Having the 31 across to have it pitched under the river
• Concentrated or strong, like liquor
• Strong enough to get pitched under the river
• Strong enough to make the top ten
• That's how powerful the top ten are
• Strong enough to have got ten into the saucepan?
• The powerful ten in the saucepan
• Strong in operation