Destructive insect — place has tons (6)
I believe the answer is:
locust
'destructive insect' is the definition.
(I've seen this before)
'place has tons' is the wordplay.
'place' becomes 'locus' (I've seen this before).
'has' says to put letters next to each other.
'tons' becomes 't'.
'locus'+'t'='LOCUST'
(Other definitions for locust that I've seen before include "It strips plants" , "Destructive tropical grasshopper" , "Large insect" , "Vegetation-destroying grasshopper" , "beast resulting in destruction" .)