Box right next to sign of damage (6)
I believe the answer is:
crater
'sign of damage' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'box right next' is the wordplay.
'box' becomes 'crate' (crate is a kind of box).
'right next' becomes 'r' (I've seen this in other clues).
'crate'+'r'='CRATER'
'to' is the link.
Can you help me to learn more?
(Other definitions for crater that I've seen before include "Hole left by explosion" , "Caldera" , "Pit resulting from impact or explosion" , "Cavity formed by explosion" , "Great hole as on top of volcano" .)