Related Clues:

• I won't ever remove lid from inverted can!
• GI's "Uh-uh!"
• With zero chance, slangily
• Decline in military activity?
• Specialised skill spoken of? Not at all
• In America, it's used to emphasise a negative expertise, it's said
• Boot camp denial
• 'Uh-uh, dude'
• Reply to a commanding officer, on occasion
• At all, in dialect; by any manner
• "Ain't gonna happen"
• Be able to broadcast under any conditions?
• Naval 'Negative'
• Not at all, not in any way
• Major denial?