Endless source of devastation in place (5)
I believe the answer is:
locus
'place' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for locus that I've seen before include "Particular point" , "Particular position (of something)" , "A defined position" , "Range - place" , "Exact place of something" .)