Possible Clues:

• Beer buys
• Gym developments
• At least a dozen beers, or nine softly placed in bags?
• Beer purchases
• Buds come in them
• Some sculpted abs ... and what the starts of 17-, 21-, 26-, 39-, 47- and 58-Across are altogether?
• Muscles needed to obtain beer?
• Bodybuilders' prides