Possible Clues:

• Money order?
• Bank statement initiating planned cash withdrawal?
• 'Reach for the sky!'
• In shtook, muckiest pup's head and hands aloft!
• 'Hands in the air!' ... or a literal hint to 17-, 23-, 37- and 46-Across
• Robber's demand ... or what to do to solve four long puzzle answers?
• Rod and his bird start to protest: 'Drop your gun!'
• Raise your hands and seal the envelopes (5,' 2,2)
• "Reach!"
• Obeying this criminal command could be the making of me