Possible Clues:

• Level with
• A brute keeping right alongside
• A little brother does not go west. He stays along side
• Side by side with an animal crossing river
• One of the herd crossing river, side by side
• A long side for a sucker?
• Level or keeping pace with
• A sailor, some soldiers and a holy man, all side by side
• Bats are incorrectly placed side by side
• That's half bust, perhaps