Possible Clues:

• There's not so much as a full stop in you
• How the officer, in short, might get on: like that
• Large intestine
• Money of Costa Rica
• Stop (on the inside!)
• Punctually, perhaps, in one's guts
• Dotty piece of punctuation
• Look into swindle in Panama
• Panama port; part of intestine
• Mark, a unit of foreign currency