Related Clues:

• Person conducting experiments
• Reverse test sign to hear professor of marine conservation, perhaps
• It's insect, strangely, this learned person knows about
• Inset tics for this learned one
• Unusual insect - it's puzzled entomologist maybe
• Cologne is top in trials involving one researcher
• It's nice wandering around in street — one's often stuck in the lab
• One studying nature or physics, say
• Insects, it turned out, his speciality?
• CSI sent it to be analysed -- by one of these?
• Eg. Physicist
• Insect -- it's dissected by one?
• Dismembering insects, it could be his speciality
• Boffin in tests spread across Channel Islands
• Bad scent -- is it Kelvin, perhaps?