Possible Clues:

• High-powered attorneys vacation at the Yellowstone Hot Springs?
• Gust in this bay not unknown, swimming in these?
• Graduate gets to object to legal actions by a number of outfits hiding beach bums presumably
• Graduate to object to those in the pack or those appealing to 22 across
• Graduate to object to those in the pack offering beach outfits
• Graduate at night changes outfits with useful types going for a swim
• Bits covering a thing you and I turned up wearing on the beach