Possible Clues:

• How some gym instructors stand
• How Superman often poses
• With hands on hip, elbows out
• Handy position for sailor taking in Kipling's novel from books' centre
• Classic Superman pose
• In a power pose
• In a power pose, maybe
• Elbows out a Victorian protagonist -- British and old
• Defiant position
• Seaman Oscar welcomes written work with open arms