Possible Clues:

• They're pronouncedly like criminals
• Inhales
• Like criminals all at sea to a pronounced extent
• They're like public enemies to a pronounced extent
• Something like public enemies to a pronounced extent
• Cross into 17 acrosses to a pronounced extent
• Criminal-like to a pronounced extent
• H makes them cross in the serpents
• Seems pronouncedly criminal to see 30 across and 5 down
• Muggins encompasses appropriate breathy sounds