Possible Clues:

• Top commander ignoring new woman, a chirpy creature
• Bug with a loud love call
• Chirpy type said to be suffering with love
• Chirpy individual, the Terry-Thomas type, captured by spies
• Insect makes a sound like ailing lass
• Chirpy little creature having cardiac trouble, not right
• Large winged insect that lives in trees and tall grass
• Noisy winged insect
• 17-year locust, e.g
• Agents detaining dishonourable fellow, chirpy type