Dangerous fly in action that sets everyone in panic (6)
I believe the answer is:
tsetse
'dangerous fly' is the definition.
'tsetse' can be an answer for 'fly' (tsetse is a kind of fly). I'm not certain of the 'dangerous' bit.
'action that sets everyone in panic' is the wordplay.
'TSETSE' is hidden within the letters.
However, I am not sure how this is indicated.
'in' is the link.
Can you help me to learn more?
(Other definitions for tsetse that I've seen before include "bloodsucker" , "Disease-carrying fly" , "cause of sleepiness?" , "fly across Africa" , "flies" .)