Possible Clues:

• Needing to be deciphered
• Encrypted
• Commanding Officer has stopped over as secrets may be dispatched
• Press chief penning note about poem in cipher
• Converted message into cryptic words or ciphers
• Disguised, as a message
• Converted to an MP4 file
• In need of cracking fish in desperate need
• Cryptic crossword's primarily composition to occupy target
• Prepared for transmission