Need to tackle damage by ultimately destructive insect (5,3)

I believe the answer is:

white ant

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'insect' is the definition.
(white ant is a kind of insect)

I can't explain the rest of the clue.

(Other definitions for white ant that I've seen before include "Termite" , "Social worker" , "insect" .)

I've seen this clue in The Hindu.

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