Possible Clues:

• World scourge
• Helps 20 down at school
• Provides support for
• They'll help angler in Deeside spectacle, initially
• Acts the Good Samaritan
• Affliction in 'Philadelphia'
• Fosters or assists
• Excellent detective gives assistance
• It's similar to one of those in 12 across calling for school supports
• Helpful hints