Possible Clues:

• Outstanding gathering student pub set up fast
• German artist on the rise, it's said, having lasting quality
• Long-lasting, as goods
• Divided by resistance, one times two less zero gives constant
• Reforming could make Bluebeard be this strong
• Strong conclusion of Angelou hidden by twisted Spanish poet?
• Denim underwear, initially, right fit and hard-wearing
• Resistant to wear and tear
• Like denim