Possible Clues:

• Cabin critter
• Oddly, their arachnid is an insect
• One may eat at your place
• Wood-eating pest
• Emitter (anag.)
• Insect in tree it damaged, feeding on elm, ultimately
• Insect described as 'short' -- it gets trapped
• Insect — call entomologist initially to capture it
• Name it, English insect
• Insect whose letters appear in "exterminate"