Dangerous place (3,4)
I believe the answer is:
hot spot
'dangerous place' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for hot spot that I've seen before include "Area of potential danger (a Greek island in summer?)" , "Lively place of entertainment" , "Place of potential excitement or violence" , "Area of potential violence or political unrest" , "volatile situation" .)